Đáp án: cân bằng pthh h2+o2 cuo+co fe+o2 - (PTHH) (2H_(2)+O_(2)→(t^o)2H_(2)O) (CuO+CO→(t^o)Cu+CO_(2)) (3Fe+2O_(2)(dư)→(t^o)Fe_(3)O_(4)) (2Fe+O_(2)(thiếu)→(t^o)2FeO)

(PTHH) (2H_(2)+O_(2)→(t^o)2H_(2)O) (CuO+CO→(t^o)Cu+CO_(2)) (3Fe+2O_(2)(dư)→(t^o)Fe_(3)O_(4)) (2Fe+O_(2)(thiếu)→(t^o)2FeO)

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cân bằng pthh h2+o2 cuo+co fe+o2

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Nguyễn Ngọc Quang

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$\text{PTHH:}$

$\text{2H$_{2}$+O$_{2}$$\xrightarrow[]{t^o}$2H$_{2}$O}$

$\text{CuO+CO$\xrightarrow[]{t^o}$Cu+CO$_{2}$}$

$\text{3Fe+2O$_{2}$(dư)$\xrightarrow[]{t^o}$Fe$_{3}$O$_{4}$}$

$\text{2Fe+O$_{2}$(thiếu)$\xrightarrow[]{t^o}$2FeO}$

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việt nam dành độc lập vào năm nào

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

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cân bằng pthh h2+o2 cuo+co fe+o2

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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.

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

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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.