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- Giải phần chuỗi này dùm mình nhaaaaaa CO2 -> Ca(HCO3)2 -> CO -> CO2 -> NaCO3 -> NaCl

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Đáp án:

Giải thích các bước giải:

CaCO3 + CO2 + H2O => Ca(HCO3)2

Ca(HCO3)2 -> CO phản ứng này không được ạ

CO + O2 -to-> CO2

Na2O + CO2 => Na2CO3

Na2CO3 + HCl --> NaCl + CO2 + H2O

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Quang Cường

2 năm trước

2CO2+ Ca(OH)2 -> Ca(HCO3)2

Ko thể chuyển từ Ca(HCO3)2 thành CO ( Nếu thay CO thành CaCO3 thì Ca(HCO3)2 (t*)-> CaCO3+ CO2+ H2O, sau đó là CaCO3 (t*)-> CaO+ CO2)

CO+ 1/2O2 (t*)-> CO2

CO2+ Na2O -> Na2CO3

Na2CO3+ 2HCl -> 2NaCl+ CO2+ H2O

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- Giải phần chuỗi này dùm mình nhaaaaaa CO2 -> Ca(HCO3)2 -> CO -> CO2 -> NaCO3 -> NaCl

2 câu trả lời

if you don't wear a helmet , you can't ride your bike => Unless

Choose the best answer.
I think you should buy ___ pack of mineral water instead. And you can also buy _ snacks such as potato crisps, 3 kilos of mandarins, 2 kilos of apples, 3 bunches of bananas, ____ cookies and soft candies.

Choose the best answer.
We should decorate our living room with _ orange banner. We also need ____ ribbons, balloons, party hats and costume.

Choose the best answer.
I think that ______ cauliflower is not enough for 3 people. Let’s buy one more.

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- Giải phần chuỗi này dùm mình nhaaaaaa CO2 -> Ca(HCO3)2 -> CO -> CO2 -> NaCO3 -> NaCl

2 câu trả lời

if you don't wear a helmet , you can't ride your bike => Unless

Choose the best answer.I think you should buy _____ pack of mineral water instead. And you can also buy _____ snacks such as potato crisps, 3 kilos of mandarins, 2 kilos of apples, 3 bunches of bananas, ______ cookies and soft candies.

Choose the best answer.We should decorate our living room with _____ orange banner. We also need ________ ribbons, balloons, party hats and costume.

Choose the best answer.I think that ______ cauliflower is not enough for 3 people. Let’s buy one more.

Đề thi - đề kiểm tra Xem thêm

Choose the best answer.
I think you should buy ___ pack of mineral water instead. And you can also buy _ snacks such as potato crisps, 3 kilos of mandarins, 2 kilos of apples, 3 bunches of bananas, ____ cookies and soft candies.

Choose the best answer.
We should decorate our living room with _ orange banner. We also need ____ ribbons, balloons, party hats and costume.

Choose the best answer.
I think that ______ cauliflower is not enough for 3 people. Let’s buy one more.