Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
![](https://rs.olm.vn/images/avt/0.png?1311)
\(Fe_2O_3+3H_2\underrightarrow{t^o}2Fe+3H_2O\)
\(2Fe+3Cl_2\underrightarrow{t^o}2FeCl_3\)
\(FeCl_3+3NaOH\rightarrow3NaCl+Fe\left(OH\right)_3\)
\(2Fe\left(OH\right)_3+3H_2SO_4\rightarrow Fe_2\left(SO_4\right)_3+6H_2O\)
![](https://rs.olm.vn/images/avt/0.png?1311)
Dãy biến đổi: \(FeS_2\rightarrow SO_2\rightarrow SO_3\rightarrow H_2SO_4\rightarrow NaHSO_4\rightarrow CuSO_4\rightarrow Cu\)
PTHH:
\(4FeS_2+11O_2\underrightarrow{t^o}2Fe_2O_3+8SO_2\)
\(2SO_2+O_2\xrightarrow[V_2O_5]{t^o}2SO_3\)
\(SO_3+H_2O\rightarrow H_2SO_4\)
\(H_2SO_{4\left(đ\right)}+NaCl_{\left(khan\right)}\underrightarrow{t^o}NaHSO_4+HCl\uparrow\)
\(2NaHSO_4+CuO\rightarrow Na_2SO_4+CuSO_4+H_2O\)
\(Mg+CuSO_4\rightarrow Cu+MgSO_4\)
![](https://rs.olm.vn/images/avt/0.png?1311)
\(C_2H_4+H_2O\underrightarrow{H^+,t^o}C_2H_5OH\)
\(C_2H_5OH+O_2\underrightarrow{men.giấm}CH_3COOH+H_2O\)
\(CH_3COOH+C_2H_5OH\underrightarrow{H_2SO_{4\left(đ\right)},t^o}CH_3COOC_2H_5+H_2O\)
\(CH_3COOC_2H_5+NaOH\underrightarrow{t^o}CH_3COONa+C_2H_5OH\)
C2H4 → C2H5OH → CH3COOH → CH3COOC2H5 → C2H5OH
(1) C2H4 + H2O \(\underrightarrow{axit}\) C2H5OH
(2) C2H5OH + O2 \(\xrightarrow[25^0-30^0C]{mengiam}\) CH3COOH + H2O
(3) CH3COOH + C2H5OH → CH3COOC2H5 + H2O
(4) CH3COOC2H5 + NaOH \(\underrightarrow{t^0}\) CH3COONa + C2H5OH
![](https://rs.olm.vn/images/avt/0.png?1311)
\(\left(-C_6H_{10}O_5-\right)_n+nH_2O\rightarrow nC_6H_{12}O_6\\ C_6H_{12}O_6\underrightarrow{\text{men rượu}}2C_2H_5OH+2CO_2\\ C_2H_5OH+O_2\underrightarrow{\text{men giấm}}CH_3COOH+H_2O\\ CH_3COOH+C_2H_5OH\xrightarrow[t^o]{H_2SO_{4\left(đ\right)}}CH_3COOC_2H_5+H_2O\)
![](https://rs.olm.vn/images/avt/0.png?1311)
1) 3Fe+3Cl2 -) 2FeCl3
2) FeCl3+3NaOH -) Fe(OH)3+3Nacl
3) 2Fe(OH)3 -t độ-) Fe2O3 + 3H20
4) Fe2O3+ 3H2SO4 -) Fe2(SO4)3 + 3H2O
5) Fe2(SO4)3 + 3Bacl2 -) 2FeCl3 + 3BaSO4
![](https://rs.olm.vn/images/avt/0.png?1311)
4Fe + 3O2-----nhiệt độ 2Fe2O3
Fe2O3 không tạo ra Fe(OH)3 nhe bạn
Fe(OH)3 + HCl---> FeCl3 + H2
2FeCl3 + 3Ag2SO4---> Fe2(SO4)3 +6 AgCl
giúp mik vs mai mik thi rồi