Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
Fe2O3+6HCl--->2FeCl3+3H2O
FeCl3+3HNO3---->Fe(NO3)3+3HCl
Fe(NO3)3+ 3NaOH--->Fe(OH)3+3NaNO3
2Fe(OH)3+ 3H2SO4---->Fe2(SO4)3+6H2O
Fe2(SO4)3+3 BaCl2----->2FeCl3+3BaSO4
\(1.\text{Fe2O3 + 6HCl → 3H2O + 2FeCl3}\)
\(2.\text{3AgNO3 + FeCl3 → 3AgCl + Fe(NO3)3}\)
\(3.\text{ 3Ba(OH)2 + 2Fe(NO3)3 → 3Ba(NO3)2 + 2Fe(OH)3 (kt) }\)
\(4.\text{3H2SO4 + 2Fe(OH)3 → Fe2(SO4)3 + 6H2O}\)
\(5.\text{3BaCl2 + Fe2(SO4)3 → 2FeCl3 + 3BaSO4}\)
\(a,\\ \left(1\right)Fe+Cu\left(NO_3\right)_2\rightarrow Fe\left(NO_3\right)_2+Cu\\ \left(2\right)Fe\left(NO_3\right)_2+2KOH\rightarrow Fe\left(OH\right)_2\downarrow+2KNO_3\\ \left(3\right)Fe\left(OH\right)_2+2HCl\rightarrow FeCl_2+2H_2O\)
\(\left(4\right)FeCl_2\) \(\rightarrow\left(đpdd\right)\) \(Fe+Cl_2\)
\(b,\\ \left(1\right)2Fe+3Cl_2\rightarrow\left(t^o\right)2FeCl_3\\ \left(2\right)FeCl_3+3AgNO_3\rightarrow Fe\left(NO_3\right)_3+3AgCl\downarrow\\ \left(3\right)Fe\left(NO_3\right)_3+3KOH\rightarrow Fe\left(OH\right)_3+3KNO_3\\ \left(4\right)2Fe\left(OH\right)_3+3H_2SO_4\rightarrow Fe_2\left(SO_4\right)_3+6H_2O\)
Bài 3 :
4FeS + 7O2 --t--> 2Fe2O3 + 4SO2
Fe2O3 + 6HNO3 -> 2Fe(NO3)3 + 3H2O
Fe(NO3)3 + 3 NaOH -> Fe(OH)3 +3NaNO3
2Fe(OH)3 --t--> Fe2O3 + 3H2O
Fe2O3 + 3H2 -t-> 2Fe + 3H2O
Fe + S -t-> FeS
1, FeCl3 + 3KOH → Fe(OH)3 + 3KCl
2Fe(OH)3 \(\underrightarrow{t^o}\)Fe2O3 + 3H2O
Fe2O3 + 3H2 \(\underrightarrow{t^o}\) 2Fe + 3H2O
3Fe + 2O2 \(\underrightarrow{t^o}\) Fe3O4
2, 2Ca + O2 \(\underrightarrow{t^o}\) 2CaO
CaO + H2O → Ca(OH)2
Ca(OH)2 + CO2 → CaCO3 + H2O
CaCO3 + H2O + CO2→ Ca(HCO3)2
Ca(HCO3)2 + 2HCl → CaCl2 + 2H2O + 2CO2
CaCl2 + Ca(OH)2 → 2CaO + 2HCl
3, 4FeS + 7O2 \(\underrightarrow{t^o}\) 2Fe2O3 + 4SO2
Fe2O3 + 6HNO3 → 2Fe(NO3)3 + 3H2O
Fe(NO3)3 + 3KOH → Fe(OH)3 + 3KNO3
2Fe(OH)3 \(\underrightarrow{t^o}\) Fe2O3 + 3H2O
Fe2O3 + 3H2 \(\underrightarrow{t^o}\) 2Fe + 3H2O
Fe + S \(\underrightarrow{t^o}\) FeS
\(3Ca+2H2O--->Ca\left(OH\right)2+H2\)
+Ca(NO3)2 +H2O
5) Ca(OH)2 + CO2---->CaCO3 +H2O
\(7\) ) CaO + CO2--->CaCO3
8) SO3 +H2O--->H2SO4
\(1\\ 2Al\left(OH\right)_3\rightarrow\left(t^o\right)Al_2O_3+3H_2O\\ 2\\ Al_2O_3+3H_2SO_4\rightarrow Al_2\left(SO_4\right)_3+3H_2O\\ Al_2\left(SO_4\right)_3+3BaCl_2\rightarrow3BaSO_4+2AlCl_3\)
2FexOy + (6x-2y)H2SO4 -> xFe2(SO4)3 + (3x-2y)SO2 + (6x-2y)H2O
a) CuSO4+Fe→FeSO4+Cu
b) ZnSO4+ 2NaOH→Na2SO4+ Zn(OH)2
c) HCl+AgNO3→AgCl+HNO3
d) BaSO3→ BaO+SO2
e)Na2CO3+Ca(NO3)2→ 2NaNO3+ CaCO3