Đáp án: Fe-FeCl2-Fe(NO3)2-Fe(OH)2-FeSO4 - Fe+2HCl→FeCl2+H2↑ Cu(NO3)2+FeCl2→Fe(NO3)2+CuCl2 Fe(NO3)2+NaOH→NaNO3+Fe(OH)2 ↓ H2SO4+Fe(OH)2→2H2O+FeSO4

Fe+2HCl→FeCl2+H2↑ Cu(NO3)2+FeCl2→Fe(NO3)2+CuCl2 Fe(NO3)2+NaOH→NaNO3+Fe(OH)2 ↓ H2SO4+Fe(OH)2→2H2O+FeSO4

hoangphan950

2 năm trước

Fe-FeCl2-Fe(NO3)2-Fe(OH)2-FeSO4

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Nguyễn Hồng Duyên

2 năm trước

Fe+2HCl→FeCl₂+H₂↑

Cu(NO₃)₂+FeCl₂→Fe(NO₃)₂+CuCl₂

Fe(NO₃)₂+NaOH→NaNO₃+Fe(OH)2 ↓

H₂SO₄+Fe(OH)₂→2H₂O+FeSO₄

choodeuu

2 năm trước

$Fe+$$2HCl$ →$FeCl_{2}$$+$$H_{2}$

$FeCl_{2}$$+$$2AgNO_{3}$ →$AgCl$$+$$Fe(NO_{3)_{2}}$

$Fe(NO_{3)_{2}}$ $+$$2NaOH$→$Fe(OH)_{2}$ $+$ $2NaNO_{3}$

$Fe(OH)_{2}$$+$$H_{2}SO_{4}$ →$FeSO_{4}$ $+$$2H_{2}O$

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Fe-FeCl2-Fe(NO3)2-Fe(OH)2-FeSO4

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

Choose the best answer.
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Choose the best answer.
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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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Fe-FeCl2-Fe(NO3)2-Fe(OH)2-FeSO4

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.