Đáp án: a) Al + O2 --> b) + HCL -->CuCl2 + H2O c) --> Fe2O3 +H2O d)Fe(NO3)3 + --> Fe(OH)3 + - a, Al + O2 --->AlO2 b, CUO +2HCl--->CuCl2 +H20 c,2 Fe/OH/2+2H0---->Fe203+H2O d,Fe/NO3/3+3H--->Fe/OH/3+3NOH Giải thích các bước giải

hanthiendii830

2 năm trước

a) Al + O2 --> .... b) .... + HCL -->CuCl2 + H2O c)... --> Fe2O3 +H2O d)Fe(NO3)3 + .... --> Fe(OH)3 +...

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Long Thảo

2 năm trước

a, Al + O2 --->AlO2

b, CUO +2HCl--->CuCl2 +H20

c,2 Fe/OH/2+2H0---->Fe203+H2O

d,Fe/NO3/3+3H--->Fe/OH/3+3NOH

Giải thích các bước giải:

giangnth

2 năm trước

Đáp án:

như dưới

Giải thích các bước giải:

4Al + 3O2 => 2Al2O3

CuO + 2HCl => CuCl2 + H2O

2Fe(OH)3 => Fe2O3 + 3H2O

Fe(NO3)3 + 3NaOH => Fe(OH)3 + 3NaNO3

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a) Al + O2 --> .... b) .... + HCL -->CuCl2 + H2O c)... --> Fe2O3 +H2O d)Fe(NO3)3 + .... --> Fe(OH)3 +...

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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a) Al + O2 --> .... b) .... + HCL -->CuCl2 + H2O c)... --> Fe2O3 +H2O d)Fe(NO3)3 + .... --> Fe(OH)3 +...

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.