Đáp án: CaO-CaCO3-CaO-Ca(OH)2-Ca - CaO+ CO2 (t*)-> CaCO3 CaCO3 (t*)-> CaO+ CO2 CaO+ H2O -> Ca(OH)2 2Ca(OH)2 (đpnc)-> 2Ca+ 2H2O + O2

hoangphan950

2 năm trước

CaO-CaCO3-CaO-Ca(OH)2-Ca

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Quang Cường

2 năm trước

CaO+ CO2 (t*)-> CaCO3

CaCO3 (t*)-> CaO+ CO2

CaO+ H2O -> Ca(OH)2

2Ca(OH)2 (đpnc)-> 2Ca+ 2H2O + O2

khiem26032005

2 năm trước

Đáp án:

Giải thích các bước giải:

CaO + CO2 -> CaCO3

CaCO3 -> CaO + CO2

CaO + H2O->Ca(OH)2

Ca(OH)2 -> Ca + H2O + O2

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CaO-CaCO3-CaO-Ca(OH)2-Ca

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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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CaO-CaCO3-CaO-Ca(OH)2-Ca

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.