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a)2Zn+O2--t0->2ZnO
2Al+3O2--t0->2Al2O3
b)Zn+Cl2--t0->ZnCl2
2Al+3Cl2--t0->2AlCl3
c)Zn+H2SO4--->ZnSO4+H2
2Al+3H2SO4--->Al2(SO4)3+3H2
d)2Al+3FeSO4--->Al2(SO4)3+3Fe
Zn+FeSO4--->ZnSO4+Fe
a) 2Zn + O2 => 2ZnO
4Al + 3O2 => 2Al2O3
2Cu + O2 => 2CuO
b) Zn + Cl2 => ZnCl2
2Al+ 3Cl2 => 2AlCl3
Cu + Cl2 => CuCl2
c) Zn + H2SO4 => ZnSO4 + H2 ↑
2Al + 3H2SO4 => Al2(SO4)3 + 3H2 ↑
d) Zn + FeSO4 => Fe + ZnSO4
2Al + 3FeSO4 => Al2(SO4)3 + 3Fe
\(2Al+3H_2SO_4\to Al_2(SO_4)_3+3H_2\\ Al_2(SO_4)_3+3BaCl_2\to 2AlCl_3+3BaSO_4\downarrow\\ AlCl_3+3NaOH\to Al(OH)_3\downarrow +3NaCl\\ 2Al(OH)_3\xrightarrow{t^o}Al_2O_3+3H_2O\\ 2Al_2O_3\xrightarrow{đpnc}4Al+3O_2\)
\(\left(1\right)2Al_2O_3\xrightarrow[Na_3AlF_6]{đpnc}4Al+3O_2\uparrow\)
\(\left(2\right)2Al+3H_2SO_4--->Al_2\left(SO_4\right)_3+3H_2\uparrow\)
\(\left(3\right)Al_2\left(SO_4\right)_3+3BaCl_2--->3BaSO_4\downarrow+2AlCl_3\)
\(\left(4\right)AlCl_3+3NaOH--->Al\left(OH\right)_3\downarrow+3NaCl\)
\(1\\ 2Al\left(OH\right)_3\rightarrow\left(t^o\right)Al_2O_3+3H_2O\\ 2\\ Al_2O_3+3H_2SO_4\rightarrow Al_2\left(SO_4\right)_3+3H_2O\\ Al_2\left(SO_4\right)_3+3BaCl_2\rightarrow3BaSO_4+2AlCl_3\)
\(CH_4+2O_2\rightarrow\left(t^o\right)CO_2+2H_2O\)
\(CH_4+Cl_2\rightarrow\left(ánh.sáng\right)CH_3Cl+HCl\)
\(C_2H_2+2Br_2\rightarrow C_2H_2Br_4\)
\(C_2H_4+Br_2\rightarrow C_2H_4Br_2\)
\(C_2H_4+3O_2\rightarrow\left(t^o\right)2CO_2+2H_2O\)
\(2C_2H_2+5O_2\rightarrow\left(t^o\right)4CO_2+2H_2O\)
CH4 + 2O2 -> (t°) CO2 + 2H2O
CH4 + Cl2 -> (ánh sáng) CH3Cl + HCl
C2H2 + 2Br2 -> C2H2Br4
C2H4 + 3O2 -> (t°) 2CO2 + 2H2O
C2H4 + Br2 -> C2H4Br2
2C2H2 + 5O2 -> (t°) 4CO2 + 2H2O
a) 2Mg + O2 \(\underrightarrow{t^o}\) 2MgO
b) Fe + S \(\underrightarrow{t^o}\) FeS
c) 2Al + 6HCl --> 2AlCl3 + 3H2
d) Fe + CuSO4 ---> FeSO4 + Cu
e) 2K + 2H2O ---> 2KOH + H2
a) 2Mg + O2 -to-➢ 2MgO
b) Fe + S -to-➢ FeS
c) 2Al + 6HCl → 2AlCl3 + 3H2
d) Fe + CuSO4 → FeSO4 + Cu
e) 2K + 2H2O → 2KOH + H2