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A: Cu(OH)2 \(\underrightarrow{t^o}\) CuO + H2O
CuO + 2HCl → CuCl2 + H2O
CuCl2 +2 NaOH → Cu(OH)2 + NaCl
Cu(OH)2 + H2SO4 → CuSO4 + 2H2O
B: Mg(OH)2 \(\underrightarrow{t^o}\) 2MgO + H2O
MgO + 2HCl → MgCl2 + H2O
MgCl2 + 2NaOH → Mg(OH)2 + NaCl
Mg(OH)2 + H2SO4 → MgSO4 + 2H2O
- Mg + 2HCl ===> MgCl2 + H2
- MgCl2 + Ba(OH)2 ===> Mg(OH)2 + BaCl2
- Mg(OH)2 =(nhiệt)==> MgO + H2O
- MgO + H2SO4===> MgSO4 + H2O
- MgSO4 + BaCl2 ===> MgCl2 + BaSO4
a,
\(1.\text{2Mg + O2 → 2MgO}\)
\(2.\text{2HCl + MgO → H2O + MgCl2}\)
\(3.\text{2NaOH + MgCl2 → Mg(OH)2 + 2NaCl }\)
\(4.\text{H2SO4 + Mg(OH)2 → 2H2O + MgSO4}\)
b,
\(1.\text{4Al(bột)+3O2=2Al2O3}\)
\(2.\text{Al2O3 + 6HCl → 2AlCl3 + 3H2O}\)
\(3.\text{AlCl3 + 3NaOH → Al(OH)3 + 3NaCl}\)
\(4.\text{2Al(OH)3=Al2O3+3H2O}\)
a) 2Mg+O2--->2MgO
MgO+2HCl---->MgCl2+H2
MgCl2+2NaOH---->2NaCl+Mg(OH)2
Mg(OH)2+ CuSO4---->Cu(OH)2+MgSO4
b)4 Al+3O2--->2Al2O3
Al2O3+6HCl----->2AlCl3+3H2O
AlCl3+3NaOH---->Al(OH)3+3NaCl
2Al(OH)3---->Al2O3+3H2O
a)
\(C_6H_{12}O_6\underrightarrow{men}2C_2H_5OH+2CO_2\)
\(C_2H_5OH+CH_3COOH⇌CH_3COOC_2H_5+H_2O\)
\(2CH_3COOH+Mg\rightarrow\left(CH_3COO\right)_2Mg+H_2\)
b)
\(CH_2=CH_2+H_2O\rightarrow C_2H_5OH\)
\(C_2H_5OH+O_2\underrightarrow{men}CH_3COOH+2H_2O\)
\(2CH_3COOH+2Na\rightarrow2CH_3COONa+H_2\)
\(CH_3COONa+NaOH\xrightarrow[CaO]{t^o}CH_4+Na_2CO_3\)
a) 2Ca + O2 -to-> 2CaO
CaO + H2O --> Ca(OH)2
Ca(OH)2 + CO2 --> CaCO3 + H2O
CaCO3 + CO2 + H2O --> Ca(HCO3)2
Ca(HCO3)2 -to-> CaCO3 + CO2 + H2O
CO2 + NaOH --> NaHCO3
2NaHCO3 -to-> Na2CO2 + CO2 + H2O
b) MgCO3 + H2SO4 --> MgSO4 + CO2 + H2O
MgSO4 + Na2CO3 --> MgCO3 + Na2SO4
MgCO3 + 2HCl --> MgCl2 + CO2 + H2O
a/ Ca + 1/2 O2 => CaO
CaO + H2O => Ca(OH)2
Ca(OH)2 + CO2 => CaCO3 + H2O
CaCO3 + CO2 + H2O => Ca(HCO3)2
Ca(HCO3)2 => CaCO3 + CO2 + H2O
CO2 + NaOH => NaHCO3
2NaHCO3 => Na2CO3 + CO2 + H2O
b/ MgCO3 + H2SO4 => MgSO4 + CO2 + H2O
MgSO4 + Na2CO3 => Na2SO4 + MgCO3
MgCO3 + 2HCl => MgCl2 + CO2 + H2O
a)
\(\left(1\right)FeCl_2+Ba\left(OH\right)_2\rightarrow BaCl_2+Fe\left(OH\right)_2\downarrow\)
\(\left(2\right)Fe\left(OH\right)_2\underrightarrow{t^o}FeO+H_2O\)
\(\left(3\right)FeO+H_2SO_4\rightarrow FeSO_4+H_2O\)
\(\left(4\right)FeSO_4+2KOH\rightarrow K_2SO_4+Fe\left(OH\right)_2\downarrow\)
b)
\(\left(1\right)MgO+H_2SO_4\rightarrow MgSO_4+H_2O\)
\(\left(2\right)MgSO_4+BaCl_2\rightarrow MgCl_2+BaSO_4\downarrow\)
\(\left(3\right)MgCl_2+2AgNO_3\rightarrow Mg\left(NO_3\right)_2+2AgCl\downarrow\)
\(\left(4\right)Mg\left(NO_3\right)_2+2NaOH\rightarrow Mg\left(OH\right)_2\downarrow+2NaNO_3\)
a) FeCl2+2NaOH--->2NaCl+Fe(OH)2
Fe(OH)2--->FeO+H2O
FeO+H2SO4--->FeSO4+H2O
FeSO4+2NaOH-->Fe(OH)2+Na2SO4
b) MgO+ H2SO4--->MgSO4+H2O
MgSO4+ BaCl2---->MgCl2+BaSO4
MgCl2+ 2AgNO3---->Mg(NO3)2+ 2AgCl
Mg(NO3)2+ 2NaOH---> Mg(OH)2+2NaNO3
Gửi bạn nhé :
\(1.\text{3Ba(NO3)2 + Fe2(SO4)3 → 2Fe(NO3)3 + 3BaSO4}\)
\(2.\text{3Ba(OH)2 + 2Fe(NO3)3 → 3Ba(NO3)2 + 2Fe(OH)3}\)
\(3.\text{2Fe(OH)3 → Fe2O3 + 3H2O}\)
\(4.\text{Fe2O3 + 3H2 → 2Fe + 3H2O}\)
Fe2(SO4)3+3Ba(NO3)2---->63aSO4+2Fe(NO3)3
Fe(NO3)3+3NaOH--->Fe(OH)3+3NaNO3
2Fe(OH)3--->Fe2O3+3H2O
Fe2O3+H2--->2Fe+3H2O
2Mg + O2 \(\underrightarrow{t^o}\)2MgO
MgO + H2SO4 -> MgSO4 + H2O
MgSO4 + BaCl2 -> BaSO4 + MgCl2
MgCl2 + 2NaOH -> 2NaCl + Mg(OH)2