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Tổng hợp đề thi Tiếng Anh có lời giải (Đề số 10)

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions.Colors are one of the most exciting experiences in life. I love them, and they are just as important to me as emotions are. Have you ever wondered how the two are so intimately related?Color directly affects your emotions. Color both reflects the current state of your emotions, and is something that you can use to improve or change your emotions. The color that you choose to wear either reflects your current state of being, or reflects the color or emotion that you need.The colors that you wear affect you much more than they affect the people around you. Of course, they also affect anyone who comes in contract with you, but you are the one saturated with the color all day! I even choose items around me based on their color. In the morning, I choose my clothes based on the color or emotion that I need for the day. So you can consciously use color to control the emotions that you are exposed to, which can help you to feel better.Color, sound, and emotions are all vibrations. Emotions are literally energy in motion; they are meant to move and flow. This is the reason that real feelings are the fastest way to get your energy in motion. Also, flowing energy is exactly what creates healthy cells in your body. So, the fastest way to be healthy is to be open to your real feelings. Alternately, the fastest way to create disease is to inhibit your emotions.What is the purpose of the passage?

Tiếng Anh Tốt nghiệp THPT

Xem chi tiết 454 lượt xem 6 năm trước

30 đề thi thử thpt quốc gia tiếng anh năm 2020 cực hay có lời giải (Đề số 9)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word for each of the blanks.Today there are libraries in almost every towns in the world. Even in areas (68)there are no libraries, there are often mobile libraries which take books from one village to (69). But in the days when books were copied by hand (70)than printed, libraries were very rare. The reason is simple: books took a very long time to produce, and there were far fewer copies of any given work around. The greatest library (71)all, that in Alexandia had 54,000 books.In the ancient world, this number (72)considered huge. It was the first time that anyone had collected so many books from all around the world (73)one roof. There are many theories about why these books were lost. (74)is that the library accidentally burned down. Another is that one of the rulers of the city ordered the books to be burned. They were taken to various places and it took six months to burn them. (75)happened, the collection there was priceless. Many of the library’s treasures were lost forever, some books were never recovered. We cannot even know exactly what the library contained.Question 74

Tiếng Anh Tốt nghiệp THPT

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Bộ đề luyện thi THPTQG Hóa Học cực hay có lời giải chi tiết (Đề số 7)

Cho chất X tác dụng với một lượng vừa đủ dung dịch NaOH, sau đó cô cạn dung dịch thu được chất rắn Y và chất hữu cơ Z. Cho Z tác dụng với AgNO3 trong dung dịch NH3 thu được chất hữu cơ T. Cho chất T tác dụng với dung dịch NaOH lại thu được chất Y. Chất X có thể là

Hóa học Tốt nghiệp THPT

Xem chi tiết 467 lượt xem 6 năm trước

Tổng hợp đề thi Tiếng Anh có lời giải (Đề số 10)

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions.Colors are one of the most exciting experiences in life. I love them, and they are just as important to me as emotions are. Have you ever wondered how the two are so intimately related?Color directly affects your emotions. Color both reflects the current state of your emotions, and is something that you can use to improve or change your emotions. The color that you choose to wear either reflects your current state of being, or reflects the color or emotion that you need.The colors that you wear affect you much more than they affect the people around you. Of course, they also affect anyone who comes in contract with you, but you are the one saturated with the color all day! I even choose items around me based on their color. In the morning, I choose my clothes based on the color or emotion that I need for the day. So you can consciously use color to control the emotions that you are exposed to, which can help you to feel better.Color, sound, and emotions are all vibrations. Emotions are literally energy in motion; they are meant to move and flow. This is the reason that real feelings are the fastest way to get your energy in motion. Also, flowing energy is exactly what creates healthy cells in your body. So, the fastest way to be healthy is to be open to your real feelings. Alternately, the fastest way to create disease is to inhibit your emotions.The phrase “saturated with” in paragraph 2 is closest in meaning to ______

Tiếng Anh Tốt nghiệp THPT

Xem chi tiết 621 lượt xem 6 năm trước

Bài tập về Este - Lipit cực hay có lời giải chi tiết (P4)

Đốt cháy hoàn toàn M gồm ancol X, axit cacboxylic Y và este Z (đều no, đơn chức, mạch howr và Y, Z có cùng số nguyên tử cacbon) cần dùng vừa đủ 12,32 lít O2 (đktc), sinh ra 11,2 lít CO2 (đktc). Công thức của Y là

Hóa học Lớp 12

Xem chi tiết 515 lượt xem 6 năm trước

30 đề thi thử thpt quốc gia tiếng anh năm 2020 cực hay có lời giải (Đề số 9)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word for each of the blanks.Today there are libraries in almost every towns in the world. Even in areas (68)there are no libraries, there are often mobile libraries which take books from one village to (69). But in the days when books were copied by hand (70)than printed, libraries were very rare. The reason is simple: books took a very long time to produce, and there were far fewer copies of any given work around. The greatest library (71)all, that in Alexandia had 54,000 books.In the ancient world, this number (72)considered huge. It was the first time that anyone had collected so many books from all around the world (73)one roof. There are many theories about why these books were lost. (74)is that the library accidentally burned down. Another is that one of the rulers of the city ordered the books to be burned. They were taken to various places and it took six months to burn them. (75)happened, the collection there was priceless. Many of the library’s treasures were lost forever, some books were never recovered. We cannot even know exactly what the library contained.Question 73

Tiếng Anh Tốt nghiệp THPT

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Bộ đề luyện thi THPTQG Hóa Học cực hay có lời giải chi tiết (Đề số 7)

Trộn lẫn V ml dung dịch NaOH 0,01M với V ml dung dịch HCl 0,03M được 2V ml dung dịch Y. Dung dịch Y có pH là

Hóa học Tốt nghiệp THPT

Xem chi tiết 288 lượt xem 6 năm trước

Tổng hợp đề thi Tiếng Anh có lời giải (Đề số 10)

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions.Colors are one of the most exciting experiences in life. I love them, and they are just as important to me as emotions are. Have you ever wondered how the two are so intimately related?Color directly affects your emotions. Color both reflects the current state of your emotions, and is something that you can use to improve or change your emotions. The color that you choose to wear either reflects your current state of being, or reflects the color or emotion that you need.The colors that you wear affect you much more than they affect the people around you. Of course, they also affect anyone who comes in contract with you, but you are the one saturated with the color all day! I even choose items around me based on their color. In the morning, I choose my clothes based on the color or emotion that I need for the day. So you can consciously use color to control the emotions that you are exposed to, which can help you to feel better.Color, sound, and emotions are all vibrations. Emotions are literally energy in motion; they are meant to move and flow. This is the reason that real feelings are the fastest way to get your energy in motion. Also, flowing energy is exactly what creates healthy cells in your body. So, the fastest way to be healthy is to be open to your real feelings. Alternately, the fastest way to create disease is to inhibit your emotions.Why does the author mention that color and emotions are both vibrations?

Tiếng Anh Tốt nghiệp THPT

Xem chi tiết 670 lượt xem 6 năm trước

30 đề thi thử thpt quốc gia tiếng anh năm 2020 cực hay có lời giải (Đề số 9)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word for each of the blanks.Today there are libraries in almost every towns in the world. Even in areas (68)there are no libraries, there are often mobile libraries which take books from one village to (69). But in the days when books were copied by hand (70)than printed, libraries were very rare. The reason is simple: books took a very long time to produce, and there were far fewer copies of any given work around. The greatest library (71)all, that in Alexandia had 54,000 books.In the ancient world, this number (72)considered huge. It was the first time that anyone had collected so many books from all around the world (73)one roof. There are many theories about why these books were lost. (74)is that the library accidentally burned down. Another is that one of the rulers of the city ordered the books to be burned. They were taken to various places and it took six months to burn them. (75)happened, the collection there was priceless. Many of the library’s treasures were lost forever, some books were never recovered. We cannot even know exactly what the library contained.Question 72

Tiếng Anh Tốt nghiệp THPT

Xem chi tiết 2.2 K lượt xem 6 năm trước

Bộ đề luyện thi THPTQG Hóa Học cực hay có lời giải chi tiết (Đề số 7)

Cho dãy các chất: Cr(OH)3, A12(SO4)3, Cr, Cr(OH)2, CrCl3 và NaHCO3. Số chất trong dãy có tính chất lưỡng tính là

Hóa học Tốt nghiệp THPT

Xem chi tiết 299 lượt xem 6 năm trước

Tổng hợp đề thi Tiếng Anh có lời giải (Đề số 10)

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions.Colors are one of the most exciting experiences in life. I love them, and they are just as important to me as emotions are. Have you ever wondered how the two are so intimately related?Color directly affects your emotions. Color both reflects the current state of your emotions, and is something that you can use to improve or change your emotions. The color that you choose to wear either reflects your current state of being, or reflects the color or emotion that you need.The colors that you wear affect you much more than they affect the people around you. Of course, they also affect anyone who comes in contract with you, but you are the one saturated with the color all day! I even choose items around me based on their color. In the morning, I choose my clothes based on the color or emotion that I need for the day. So you can consciously use color to control the emotions that you are exposed to, which can help you to feel better.Color, sound, and emotions are all vibrations. Emotions are literally energy in motion; they are meant to move and flow. This is the reason that real feelings are the fastest way to get your energy in motion. Also, flowing energy is exactly what creates healthy cells in your body. So, the fastest way to be healthy is to be open to your real feelings. Alternately, the fastest way to create disease is to inhibit your emotions.The term “they” in paragraph 2 refers to ______

Tiếng Anh Tốt nghiệp THPT

Xem chi tiết 382 lượt xem 6 năm trước

30 đề thi thử thpt quốc gia tiếng anh năm 2020 cực hay có lời giải (Đề số 9)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word for each of the blanks.Today there are libraries in almost every towns in the world. Even in areas (68)there are no libraries, there are often mobile libraries which take books from one village to (69). But in the days when books were copied by hand (70)than printed, libraries were very rare. The reason is simple: books took a very long time to produce, and there were far fewer copies of any given work around. The greatest library (71)all, that in Alexandia had 54,000 books.In the ancient world, this number (72)considered huge. It was the first time that anyone had collected so many books from all around the world (73)one roof. There are many theories about why these books were lost. (74)is that the library accidentally burned down. Another is that one of the rulers of the city ordered the books to be burned. They were taken to various places and it took six months to burn them. (75)happened, the collection there was priceless. Many of the library’s treasures were lost forever, some books were never recovered. We cannot even know exactly what the library contained.Question 71

Tiếng Anh Tốt nghiệp THPT

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Bộ đề luyện thi THPTQG Hóa Học cực hay có lời giải chi tiết (Đề số 7)

Điện phân dung dịch hỗn hợp gồm HCl, NaCl, CuCl2, FeCl3. Thứ tự các quá trình nhận electron trên catot là

Hóa học Tốt nghiệp THPT

Xem chi tiết 329 lượt xem 6 năm trước

Tổng hợp đề thi Tiếng Anh có lời giải (Đề số 10)

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions.Colors are one of the most exciting experiences in life. I love them, and they are just as important to me as emotions are. Have you ever wondered how the two are so intimately related?Color directly affects your emotions. Color both reflects the current state of your emotions, and is something that you can use to improve or change your emotions. The color that you choose to wear either reflects your current state of being, or reflects the color or emotion that you need.The colors that you wear affect you much more than they affect the people around you. Of course, they also affect anyone who comes in contract with you, but you are the one saturated with the color all day! I even choose items around me based on their color. In the morning, I choose my clothes based on the color or emotion that I need for the day. So you can consciously use color to control the emotions that you are exposed to, which can help you to feel better.Color, sound, and emotions are all vibrations. Emotions are literally energy in motion; they are meant to move and flow. This is the reason that real feelings are the fastest way to get your energy in motion. Also, flowing energy is exactly what creates healthy cells in your body. So, the fastest way to be healthy is to be open to your real feelings. Alternately, the fastest way to create disease is to inhibit your emotions.The term “intimately” in paragraph 1 is closest in meaning to ______.

Tiếng Anh Tốt nghiệp THPT

Xem chi tiết 382 lượt xem 6 năm trước

Bài tập về Este - Lipit cực hay có lời giải chi tiết (P4)

Cho X, Y (MX<MY) là hai este mạch hở, có mạch cacbon không phân nhánh. Đốt cháy hoàn toàn X hoặc Y luôn thu được CO2 có số mol bằng số mol O2 đã phản ứng. Đun nóng 30,24 gam hỗn hợp E chứa X, Y (số mol của X gấp 1,5 lần số mol Y) trong 400 ml dung dịch KOH 1M, sau phản ứng chỉ thu được hỗn hợp F chứa 2 ancol và hỗn hợp G chứa 2 muối. Cho F vào bình đựng Na dư, sau phản ứng có khí H2 thoát ra và khối lượng bình tăng 15,2 gam. Đốt cháy hoàn toàn G cần vừa đủ 0,42 mol O2. Tổng số nguyên tử trong phân tử Y là

Hóa học Lớp 12

Xem chi tiết 389 lượt xem 6 năm trước

Tổng hợp đề thi Tiếng Anh có lời giải (Đề số 10)

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions.Colors are one of the most exciting experiences in life. I love them, and they are just as important to me as emotions are. Have you ever wondered how the two are so intimately related?Color directly affects your emotions. Color both reflects the current state of your emotions, and is something that you can use to improve or change your emotions. The color that you choose to wear either reflects your current state of being, or reflects the color or emotion that you need.The colors that you wear affect you much more than they affect the people around you. Of course, they also affect anyone who comes in contract with you, but you are the one saturated with the color all day! I even choose items around me based on their color. In the morning, I choose my clothes based on the color or emotion that I need for the day. So you can consciously use color to control the emotions that you are exposed to, which can help you to feel better.Color, sound, and emotions are all vibrations. Emotions are literally energy in motion; they are meant to move and flow. This is the reason that real feelings are the fastest way to get your energy in motion. Also, flowing energy is exactly what creates healthy cells in your body. So, the fastest way to be healthy is to be open to your real feelings. Alternately, the fastest way to create disease is to inhibit your emotions.According to this passage, what creates disease?

Tiếng Anh Tốt nghiệp THPT

Xem chi tiết 318 lượt xem 6 năm trước

30 đề thi thử thpt quốc gia tiếng anh năm 2020 cực hay có lời giải (Đề số 9)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word for each of the blanks.Today there are libraries in almost every towns in the world. Even in areas (68)there are no libraries, there are often mobile libraries which take books from one village to (69). But in the days when books were copied by hand (70)than printed, libraries were very rare. The reason is simple: books took a very long time to produce, and there were far fewer copies of any given work around. The greatest library (71)all, that in Alexandia had 54,000 books.In the ancient world, this number (72)considered huge. It was the first time that anyone had collected so many books from all around the world (73)one roof. There are many theories about why these books were lost. (74)is that the library accidentally burned down. Another is that one of the rulers of the city ordered the books to be burned. They were taken to various places and it took six months to burn them. (75)happened, the collection there was priceless. Many of the library’s treasures were lost forever, some books were never recovered. We cannot even know exactly what the library contained.Question 70:

Tiếng Anh Tốt nghiệp THPT

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Bộ đề luyện thi THPTQG Hóa Học cực hay có lời giải chi tiết (Đề số 7)

Khi lên men 360 gam glucozo thành ancol etylic với hiệu suất 100%, khối lượng ancol etylic thu được là

Hóa học Tốt nghiệp THPT

Xem chi tiết 303 lượt xem 6 năm trước

Tổng hợp đề thi Tiếng Anh có lời giải (Đề số 10)

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions.Colors are one of the most exciting experiences in life. I love them, and they are just as important to me as emotions are. Have you ever wondered how the two are so intimately related?Color directly affects your emotions. Color both reflects the current state of your emotions, and is something that you can use to improve or change your emotions. The color that you choose to wear either reflects your current state of being, or reflects the color or emotion that you need.The colors that you wear affect you much more than they affect the people around you. Of course, they also affect anyone who comes in contract with you, but you are the one saturated with the color all day! I even choose items around me based on their color. In the morning, I choose my clothes based on the color or emotion that I need for the day. So you can consciously use color to control the emotions that you are exposed to, which can help you to feel better.Color, sound, and emotions are all vibrations. Emotions are literally energy in motion; they are meant to move and flow. This is the reason that real feelings are the fastest way to get your energy in motion. Also, flowing energy is exactly what creates healthy cells in your body. So, the fastest way to be healthy is to be open to your real feelings. Alternately, the fastest way to create disease is to inhibit your emotions.According to the passage, what do color, sound, and emotion all have in common?

Tiếng Anh Tốt nghiệp THPT

Xem chi tiết 548 lượt xem 6 năm trước

30 đề thi thử thpt quốc gia tiếng anh năm 2020 cực hay có lời giải (Đề số 9)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word for each of the blanks.Today there are libraries in almost every towns in the world. Even in areas (68)there are no libraries, there are often mobile libraries which take books from one village to (69). But in the days when books were copied by hand (70)than printed, libraries were very rare. The reason is simple: books took a very long time to produce, and there were far fewer copies of any given work around. The greatest library (71)all, that in Alexandia had 54,000 books.In the ancient world, this number (72)considered huge. It was the first time that anyone had collected so many books from all around the world (73)one roof. There are many theories about why these books were lost. (74)is that the library accidentally burned down. Another is that one of the rulers of the city ordered the books to be burned. They were taken to various places and it took six months to burn them. (75)happened, the collection there was priceless. Many of the library’s treasures were lost forever, some books were never recovered. We cannot even know exactly what the library contained.Question 69:

Tiếng Anh Tốt nghiệp THPT

Xem chi tiết 1.6 K lượt xem 6 năm trước

Tổng hợp đề thi Tiếng Anh có lời giải (Đề số 10)

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions.Colors are one of the most exciting experiences in life. I love them, and they are just as important to me as emotions are. Have you ever wondered how the two are so intimately related?Color directly affects your emotions. Color both reflects the current state of your emotions, and is something that you can use to improve or change your emotions. The color that you choose to wear either reflects your current state of being, or reflects the color or emotion that you need.The colors that you wear affect you much more than they affect the people around you. Of course, they also affect anyone who comes in contract with you, but you are the one saturated with the color all day! I even choose items around me based on their color. In the morning, I choose my clothes based on the color or emotion that I need for the day. So you can consciously use color to control the emotions that you are exposed to, which can help you to feel better.Color, sound, and emotions are all vibrations. Emotions are literally energy in motion; they are meant to move and flow. This is the reason that real feelings are the fastest way to get your energy in motion. Also, flowing energy is exactly what creates healthy cells in your body. So, the fastest way to be healthy is to be open to your real feelings. Alternately, the fastest way to create disease is to inhibit your emotions.Who is more influenced by colors you wear?

Tiếng Anh Tốt nghiệp THPT

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30 đề thi thử thpt quốc gia tiếng anh năm 2020 cực hay có lời giải (Đề số 9)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word for each of the blanks.Today there are libraries in almost every towns in the world. Even in areas (68)there are no libraries, there are often mobile libraries which take books from one village to (69). But in the days when books were copied by hand (70)than printed, libraries were very rare. The reason is simple: books took a very long time to produce, and there were far fewer copies of any given work around. The greatest library (71)all, that in Alexandia had 54,000 books.In the ancient world, this number (72)considered huge. It was the first time that anyone had collected so many books from all around the world (73)one roof. There are many theories about why these books were lost. (74)is that the library accidentally burned down. Another is that one of the rulers of the city ordered the books to be burned. They were taken to various places and it took six months to burn them. (75)happened, the collection there was priceless. Many of the library’s treasures were lost forever, some books were never recovered. We cannot even know exactly what the library contained.Question 68

Tiếng Anh Tốt nghiệp THPT

Xem chi tiết 669 lượt xem 6 năm trước

Bộ đề luyện thi THPTQG Hóa Học cực hay có lời giải chi tiết (Đề số 7)

Nung nóng 16,8 gam hỗn hợp gồm Au, Ag, Cu, Fe, Zn với một lượng dư khí O2, đến khi các phản ứng xảy ra hoàn toàn, thu được 23,2 gam chất rắn X. Thể tích dung dịch HCl 2M vừa đủ để phản ứng với chất rắn X là

Hóa học Tốt nghiệp THPT

Xem chi tiết 413 lượt xem 6 năm trước

Tổng hợp đề thi Tiếng Anh có lời giải (Đề số 10)

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions.Colors are one of the most exciting experiences in life. I love them, and they are just as important to me as emotions are. Have you ever wondered how the two are so intimately related?Color directly affects your emotions. Color both reflects the current state of your emotions, and is something that you can use to improve or change your emotions. The color that you choose to wear either reflects your current state of being, or reflects the color or emotion that you need.The colors that you wear affect you much more than they affect the people around you. Of course, they also affect anyone who comes in contract with you, but you are the one saturated with the color all day! I even choose items around me based on their color. In the morning, I choose my clothes based on the color or emotion that I need for the day. So you can consciously use color to control the emotions that you are exposed to, which can help you to feel better.Color, sound, and emotions are all vibrations. Emotions are literally energy in motion; they are meant to move and flow. This is the reason that real feelings are the fastest way to get your energy in motion. Also, flowing energy is exactly what creates healthy cells in your body. So, the fastest way to be healthy is to be open to your real feelings. Alternately, the fastest way to create disease is to inhibit your emotions.Which of the following can be affected by color?

Tiếng Anh Tốt nghiệp THPT

Xem chi tiết 282 lượt xem 6 năm trước

Bộ đề luyện thi THPTQG Hóa Học cực hay có lời giải chi tiết (Đề số 7)

Thông thường khi bị gãy tay chân… người ta phải bó bột lại vậy họ đã dùng hóa chất nào?

Hóa học Tốt nghiệp THPT

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Tổng hợp đề thi Tiếng Anh có lời giải (Đề số 10)

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions.Colors are one of the most exciting experiences in life. I love them, and they are just as important to me as emotions are. Have you ever wondered how the two are so intimately related?Color directly affects your emotions. Color both reflects the current state of your emotions, and is something that you can use to improve or change your emotions. The color that you choose to wear either reflects your current state of being, or reflects the color or emotion that you need.The colors that you wear affect you much more than they affect the people around you. Of course, they also affect anyone who comes in contract with you, but you are the one saturated with the color all day! I even choose items around me based on their color. In the morning, I choose my clothes based on the color or emotion that I need for the day. So you can consciously use color to control the emotions that you are exposed to, which can help you to feel better.Color, sound, and emotions are all vibrations. Emotions are literally energy in motion; they are meant to move and flow. This is the reason that real feelings are the fastest way to get your energy in motion. Also, flowing energy is exactly what creates healthy cells in your body. So, the fastest way to be healthy is to be open to your real feelings. Alternately, the fastest way to create disease is to inhibit your emotions.What is the main idea of the passage?

Tiếng Anh Tốt nghiệp THPT

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Bộ đề luyện thi THPTQG Hóa Học cực hay có lời giải chi tiết (Đề số 7)

Phèn nhôm (phèn chua) có công thức hóa học là

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Đề thi minh họa kỳ thi THPT Quốc Gia môn hóa học năm 2019 (Đề số 1)

Tiến hành các thí nghiệm sau ở điều kiện thường:(a) Sục khí SO2 vào dung dịch H2S. (b) Sục khí F2 vào nước.(c) Cho KMnO4 vào dung dịch HCl đặc.(d) Sục khí CO2 vào dung dịch NaOH.(e) Cho Si vào dung dịch NaOH.(g) Cho Na2SO3 vào dung dịch H2SO4.Số thí nghiệm có sinh ra đơn chất là:

Hóa học Tốt nghiệp THPT

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Bộ đề luyện thi THPTQG Hóa Học cực hay có lời giải chi tiết (Đề số 7)

Khi cho 3,75 gam axit aminoaxetic (H2NCH2COOH) tác dụng hết với dung dịch NaOH, khối lượng muối tạo thành là

Hóa học Tốt nghiệp THPT

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Đề thi minh họa kỳ thi THPT Quốc Gia môn hóa học năm 2019 (Đề số 1)

Phát biểu nào sau đây sai?

Hóa học Tốt nghiệp THPT

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30 đề thi thử thpt quốc gia tiếng anh năm 2020 cực hay có lời giải (Đề số 9)

Mark the letter A, B, C, or D on your answer sheet to choose the sentence which is closest in meaning to the given one.When we arrived at the airport,________.

Tiếng Anh Tốt nghiệp THPT

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Tổng hợp đề thi Tiếng Anh có lời giải (Đề số 10)

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 35 to 44Here are tips that help succeed in your job interview:Always arrive early. If you do not know (35) the organization is located, call for exact directions (36) advance. Leave some extra time for any traffic, parking, or (37) events. If you are running late, call right away and let someone know. The best time to arrive is approximately 5 - 10 minutes early. Give (38) the time to read your resume one more time, to catch your breath, and to be ready for the interview. Once you are at the office, treat everyone you encounter with respect. Be (39) to everyone as soon as you walk in the door.Wear a professional business suit. This point should be emphasized enough. First (40) are extremely important in the interview process. Women should (41) wearing too much jewelry or make up. Men should avoid flashy suits or wearing too much perfume. It is (42) important that you feel comfortable. While a suit is the standard interview attire in a business environment, if you think it is (43) informal environment, call before and ask. Regardless, you can never be overdressed (44) you are wearing a tailored suit..Question 44

Tiếng Anh Tốt nghiệp THPT

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Đề thi minh họa kỳ thi THPT Quốc Gia môn hóa học năm 2019 (Đề số 1)

Chất nào sau đây không thủy phân trong môi trường axit?

Hóa học Tốt nghiệp THPT

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Tổng hợp đề thi Tiếng Anh có lời giải (Đề số 10)

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 35 to 44Here are tips that help succeed in your job interview:Always arrive early. If you do not know (35) the organization is located, call for exact directions (36) advance. Leave some extra time for any traffic, parking, or (37) events. If you are running late, call right away and let someone know. The best time to arrive is approximately 5 - 10 minutes early. Give (38) the time to read your resume one more time, to catch your breath, and to be ready for the interview. Once you are at the office, treat everyone you encounter with respect. Be (39) to everyone as soon as you walk in the door.Wear a professional business suit. This point should be emphasized enough. First (40) are extremely important in the interview process. Women should (41) wearing too much jewelry or make up. Men should avoid flashy suits or wearing too much perfume. It is (42) important that you feel comfortable. While a suit is the standard interview attire in a business environment, if you think it is (43) informal environment, call before and ask. Regardless, you can never be overdressed (44) you are wearing a tailored suit..Question 43

Tiếng Anh Tốt nghiệp THPT

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30 đề thi thử thpt quốc gia tiếng anh năm 2020 cực hay có lời giải (Đề số 9)

Mark the letter A, B, C, or D on your answer sheet to choose the sentence which is closest in meaning to the given one.‘Don’t touch that flower”, the old lady said to the boy.

Tiếng Anh Tốt nghiệp THPT

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Đề thi minh họa kỳ thi THPT Quốc Gia môn hóa học năm 2019 (Đề số 1)

Đun 3,0 gam CH3COOH với C2H5OH dư (xúc tác H2SO4 đặc), thu được 2,2 gam CH3COOC2H5. Hiệu suất của phản ứng este hóa tính theo axit là:

Hóa học Tốt nghiệp THPT

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Ôn luyện hóa hữu cơ 12 cực hay có lời giải (Đề số 11)

Hợp chất hữu cơ X chỉ chứa một nhóm chức, có công thức phân tử C6H10O4. khi X tác dụng với NaOH được một muối và một ancol. Lấy muối thu được đem đốt cháy thì sản phẩm không có nước. công thức cấu tạo của X là :

Hóa học Lớp 12

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Tổng hợp đề thi Tiếng Anh có lời giải (Đề số 10)

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 35 to 44Here are tips that help succeed in your job interview:Always arrive early. If you do not know (35) the organization is located, call for exact directions (36) advance. Leave some extra time for any traffic, parking, or (37) events. If you are running late, call right away and let someone know. The best time to arrive is approximately 5 - 10 minutes early. Give (38) the time to read your resume one more time, to catch your breath, and to be ready for the interview. Once you are at the office, treat everyone you encounter with respect. Be (39) to everyone as soon as you walk in the door.Wear a professional business suit. This point should be emphasized enough. First (40) are extremely important in the interview process. Women should (41) wearing too much jewelry or make up. Men should avoid flashy suits or wearing too much perfume. It is (42) important that you feel comfortable. While a suit is the standard interview attire in a business environment, if you think it is (43) informal environment, call before and ask. Regardless, you can never be overdressed (44) you are wearing a tailored suit..Question 42

Tiếng Anh Tốt nghiệp THPT

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Đề thi minh họa kỳ thi THPT Quốc Gia môn hóa học năm 2019 (Đề số 1)

Đốt cháy hoàn toàn chất hữu cơ nào sau đây thu được sản phẩm có chứa N2?

Hóa học Tốt nghiệp THPT

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Ôn luyện hóa hữu cơ 12 cực hay có lời giải (Đề số 11)

Hỗn hợp X gồm 2 este đơn chức A và B hơn kém nhau một nhóm -CH2- Cho 6,6 gam hỗn hợp X tác dụng vừa đủ với 100 ml dung dịch NaOH 1M, thu được 7,4 gam hỗn hợp 2 muối. Công thức cấu tạo chính xác của A và B là

Hóa học Lớp 12

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Tổng hợp đề thi Tiếng Anh có lời giải (Đề số 10)

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 35 to 44Here are tips that help succeed in your job interview:Always arrive early. If you do not know (35) the organization is located, call for exact directions (36) advance. Leave some extra time for any traffic, parking, or (37) events. If you are running late, call right away and let someone know. The best time to arrive is approximately 5 - 10 minutes early. Give (38) the time to read your resume one more time, to catch your breath, and to be ready for the interview. Once you are at the office, treat everyone you encounter with respect. Be (39) to everyone as soon as you walk in the door.Wear a professional business suit. This point should be emphasized enough. First (40) are extremely important in the interview process. Women should (41) wearing too much jewelry or make up. Men should avoid flashy suits or wearing too much perfume. It is (42) important that you feel comfortable. While a suit is the standard interview attire in a business environment, if you think it is (43) informal environment, call before and ask. Regardless, you can never be overdressed (44) you are wearing a tailored suit..Question 41

Tiếng Anh Tốt nghiệp THPT

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Đề thi minh họa kỳ thi THPT Quốc Gia môn hóa học năm 2019 (Đề số 1)

Quá trình kết hợp nhiều phân tử nhỏ (monome) thành phân tử lớn (polime) đồng thời giải phóng những phân tử nhỏ khác (thí dụ H2O) được gọi là phản ứng:

Hóa học Tốt nghiệp THPT

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Bài tập về Este - Lipit cực hay có lời giải chi tiết (P4)

Cho este X đơn chức tác dụng hoàn toàn với 1 lít dung dịch KOH 2,4M, thu được dung dịch Y chứa 210 gam chất tan và m gam ancol Z. Oxi hóa không hoàn toàn m gam ancol Z bằng oxi có xúc tác thu được hỗn hợp T. Chia T thành 3 phần bằng nhau:- Cho phần 1 tác dụng với lượng dư dung dịch AgNO3 trong NH3 thu được 43,2 gam Ag.- Cho phần 2 tác dụng với NaHCO3 dư thu được 4,48 lít khí (ở đktc).- Cho phần 3 tác dụng với Na (vừa đủ) thu được 8,96 lít khí (ở đktc) và 51,6 gam chất rắn khan.Tên gọi của X là

Hóa học Lớp 12

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Ôn luyện hóa hữu cơ 12 cực hay có lời giải (Đề số 11)

Mô tả hiện tượng nào dưới đây là không chính xác ?

Hóa học Lớp 12

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30 đề thi thử thpt quốc gia tiếng anh năm 2020 cực hay có lời giải (Đề số 9)

Mark the letter A, B, C, or D on your answer sheet to choose the sentence which is closest in meaning to the given one.When the unemployment rate is high, the crime rate is usually also high.

Tiếng Anh Tốt nghiệp THPT

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Tổng hợp đề thi Tiếng Anh có lời giải (Đề số 10)

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 35 to 44Here are tips that help succeed in your job interview:Always arrive early. If you do not know (35) the organization is located, call for exact directions (36) advance. Leave some extra time for any traffic, parking, or (37) events. If you are running late, call right away and let someone know. The best time to arrive is approximately 5 - 10 minutes early. Give (38) the time to read your resume one more time, to catch your breath, and to be ready for the interview. Once you are at the office, treat everyone you encounter with respect. Be (39) to everyone as soon as you walk in the door.Wear a professional business suit. This point should be emphasized enough. First (40) are extremely important in the interview process. Women should (41) wearing too much jewelry or make up. Men should avoid flashy suits or wearing too much perfume. It is (42) important that you feel comfortable. While a suit is the standard interview attire in a business environment, if you think it is (43) informal environment, call before and ask. Regardless, you can never be overdressed (44) you are wearing a tailored suit..Question 40

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Ôn luyện hóa hữu cơ 12 cực hay có lời giải (Đề số 11)

Ancol X (MX= 76) tác dụng với axit cacboxylic Y thu được hợp chất Z mạch hở (X và Y đều chỉ có một loại nhóm chức). Đốt cháy hoàn toàn 17,2 gam Z cần vừa đủ 14,56 lít khí O2 (đktc), thu được CO2 và H2O theo tỉ lệ số mol tương ứng là 7 : 4. Mặt khác, 17,2 gam Z lại phản ứng vừa đủ với 8 gam NaOH trong dung dịch. Biết Z có công thức phân tử trùng với công thức đơn giản nhất. Số công thức cấu tạo của Z thỏa mãn là

Hóa học Lớp 12

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Đề thi minh họa kỳ thi THPT Quốc Gia môn hóa học năm 2019 (Đề số 1)

Khi làm thí nghiệm với H2SO4 đặc, nóng thường sinh ra khí SO2. Để hạn chế tốt nhất khí SO2 thoát ra gây ô nhiễm môi trường, người ta nút ống nghiệm bằng bông tẩm dung dịch nào sau đây?

Hóa học Tốt nghiệp THPT

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Ôn luyện hóa hữu cơ 12 cực hay có lời giải (Đề số 11)

Chất hữu cơ đơn chức, mạch hở X (C5H8O2) có các tính chất sau:(1) Tác dụng được với dung dịch NaOH nhưng không tác dụng được với Na.(2) Không tham gia được phản ứng tráng gương.Số công thức cấu tạo của X trong trường hợp này là

Hóa học Lớp 12

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Tổng hợp đề thi Tiếng Anh có lời giải (Đề số 10)

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 35 to 44Here are tips that help succeed in your job interview:Always arrive early. If you do not know (35) the organization is located, call for exact directions (36) advance. Leave some extra time for any traffic, parking, or (37) events. If you are running late, call right away and let someone know. The best time to arrive is approximately 5 - 10 minutes early. Give (38) the time to read your resume one more time, to catch your breath, and to be ready for the interview. Once you are at the office, treat everyone you encounter with respect. Be (39) to everyone as soon as you walk in the door.Wear a professional business suit. This point should be emphasized enough. First (40) are extremely important in the interview process. Women should (41) wearing too much jewelry or make up. Men should avoid flashy suits or wearing too much perfume. It is (42) important that you feel comfortable. While a suit is the standard interview attire in a business environment, if you think it is (43) informal environment, call before and ask. Regardless, you can never be overdressed (44) you are wearing a tailored suit..Question 39

Tiếng Anh Tốt nghiệp THPT

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Lớp 12

Lớp 11

Lớp 10

Ôn vào 10

Lớp 9

Lớp 8

Lớp 7

Lớp 6

Ôn vào 6

Lớp 5

Lớp 4

Lớp 3

Lớp 2

Lớp 1

Đại học

ĐGNL - ĐGTD

Tốt nghiệp THPT

Ôn vào 10

Ôn vào 6

Toán

Văn

Tiếng Anh

Hóa học

Sinh học

Lịch sử

Địa lý

Giáo dục Kinh tế và Pháp luật

Toán

Toán

Toán

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Văn

Tiếng Anh

Toán

Toán

Toán

Toán

Danh sách câu hỏi ( Có 2,427,981 câu hỏi trên 48,560 trang )

Đốt cháy hoàn toàn M gồm ancol X, axit cacboxylic Y và este Z (đều no, đơn chức, mạch howr và Y, Z có cùng số nguyên tử cacbon) cần dùng vừa đủ 12,32 lít O2 (đktc), sinh ra 11,2 lít CO2 (đktc). Công thức của Y là

Trộn lẫn V ml dung dịch NaOH 0,01M với V ml dung dịch HCl 0,03M được 2V ml dung dịch Y. Dung dịch Y có pH là

Cho dãy các chất: Cr(OH)3, A12(SO4)3, Cr, Cr(OH)2, CrCl3 và NaHCO3. Số chất trong dãy có tính chất lưỡng tính là

Điện phân dung dịch hỗn hợp gồm HCl, NaCl, CuCl2, FeCl3. Thứ tự các quá trình nhận electron trên catot là

Khi lên men 360 gam glucozo thành ancol etylic với hiệu suất 100%, khối lượng ancol etylic thu được là

Nung nóng 16,8 gam hỗn hợp gồm Au, Ag, Cu, Fe, Zn với một lượng dư khí O2, đến khi các phản ứng xảy ra hoàn toàn, thu được 23,2 gam chất rắn X. Thể tích dung dịch HCl 2M vừa đủ để phản ứng với chất rắn X là

Thông thường khi bị gãy tay chân… người ta phải bó bột lại vậy họ đã dùng hóa chất nào?

Phèn nhôm (phèn chua) có công thức hóa học là

Khi cho 3,75 gam axit aminoaxetic (H2NCH2COOH) tác dụng hết với dung dịch NaOH, khối lượng muối tạo thành là

Phát biểu nào sau đây sai?

Mark the letter A, B, C, or D on your answer sheet to choose the sentence which is closest in meaning to the given one.When we arrived at the airport,________.

Chất nào sau đây không thủy phân trong môi trường axit?

Mark the letter A, B, C, or D on your answer sheet to choose the sentence which is closest in meaning to the given one.‘Don’t touch that flower”, the old lady said to the boy.

Đun 3,0 gam CH3COOH với C2H5OH dư (xúc tác H2SO4 đặc), thu được 2,2 gam CH3COOC2H5. Hiệu suất của phản ứng este hóa tính theo axit là:

Hợp chất hữu cơ X chỉ chứa một nhóm chức, có công thức phân tử C6H10O4. khi X tác dụng với NaOH được một muối và một ancol. Lấy muối thu được đem đốt cháy thì sản phẩm không có nước. công thức cấu tạo của X là :

Đốt cháy hoàn toàn chất hữu cơ nào sau đây thu được sản phẩm có chứa N2?

Hỗn hợp X gồm 2 este đơn chức A và B hơn kém nhau một nhóm -CH2- Cho 6,6 gam hỗn hợp X tác dụng vừa đủ với 100 ml dung dịch NaOH 1M, thu được 7,4 gam hỗn hợp 2 muối. Công thức cấu tạo chính xác của A và B là

Quá trình kết hợp nhiều phân tử nhỏ (monome) thành phân tử lớn (polime) đồng thời giải phóng những phân tử nhỏ khác (thí dụ H2O) được gọi là phản ứng:

Mô tả hiện tượng nào dưới đây là không chính xác ?

Mark the letter A, B, C, or D on your answer sheet to choose the sentence which is closest in meaning to the given one.When the unemployment rate is high, the crime rate is usually also high.

Khi làm thí nghiệm với H2SO4 đặc, nóng thường sinh ra khí SO2. Để hạn chế tốt nhất khí SO2 thoát ra gây ô nhiễm môi trường, người ta nút ống nghiệm bằng bông tẩm dung dịch nào sau đây?

Chất hữu cơ đơn chức, mạch hở X (C5H8O2) có các tính chất sau:(1) Tác dụng được với dung dịch NaOH nhưng không tác dụng được với Na.(2) Không tham gia được phản ứng tráng gương.Số công thức cấu tạo của X trong trường hợp này là

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