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$Cu \to CuO \to CuSO_4 \to CuCl_2 \to Cu(NO_3)_2 \to Cu(OH)_2$
$2Cu + O_2 \xrightarrow{t^o} 2CuO$
$CuO + H_2SO_4 \to CuSO_4 + H_2O$
$CuSO_4 + BaCl_2 \to BaSO_4 + CuCl_2$
$CuCl_2 + 2AgNO_3 \to Cu(NO_3)_2 + 2AgCl$
$Cu(NO_3)_2 + 2KOH \to Cu(OH)_2 + 2KNO_3$
CuSO4 ------> CuCl2--------> Cu(NO3)2 -------> Cu(OH)2 ------> CuO-----> Cu
\(CuSO_4+BaCl_2\rightarrow BaSO_4+CuCl_2\)
\(CuCl_2+2AgNO_3\rightarrow Cu\left(NO_3\right)_2+2AgCl\)
\(Cu\left(NO_3\right)_2+2NaOH\rightarrow Cu\left(OH\right)_2+2NaNO_3\)
\(Cu\left(OH\right)_2-^{t^o}\rightarrow CuO+H_2O\)
\(CuO+H_2-^{t^o}\rightarrow Cu+H_2O\)
a)\(2Cu+O_2\underrightarrow{t^o}2CuO\)
\(CuO+2HCl\rightarrow CuCl_2+H_2O\)
\(CuCl_2+H_2SO_4\rightarrow CuSO_4+2HCl\)
\(CuSO_4+2NaOH\rightarrow Cu\left(OH\right)_2+Na_2SO_4\)
\(Cu\left(OH\right)_2\underrightarrow{t^o}CuO+H_2O\)
\(CuO+H_2\rightarrow Cu+H_2O\)
\(Cu+Cl_2\rightarrow CuCl_2\)
\(CuCl_2+2NaOH\rightarrow Cu\left(OH\right)_2+2NaCl\)
b)\(2Al+3Cl_2\rightarrow2AlCl_3\)
\(AlCl_3+3NaOH\rightarrow Al\left(OH\right)_3+3NaCl\)
\(2Al\left(OH\right)_3\underrightarrow{t^o}Al_2O_3+3H_2O\)
\(Al_2O_3+6HNO_3\rightarrow2Al\left(NO_3\right)_3+3H_2O\)
\(2Al\left(NO_3\right)_3+3Mg\rightarrow3Mg\left(NO_3\right)_2+2Al\)
a,
Cu+ \(\frac{1}{2}\)O2\(\underrightarrow{^{to}}\) CuO
CuO+ 2HCl \(\rightarrow\) CuCl2+ H2O
Phương trình 3 ko tồn tại
CuSO4+ 2NaOH \(\rightarrow\) Cu(OH)2+ Na2SO4
Cu(OH)2\(\underrightarrow{^{to}}\) CuO+ H2O
CuO+ CO \(\underrightarrow{^{to}}\)Cu+ CO2
Cu+ Cl2 \(\underrightarrow{^{to}}\)CuCl2
CuCl2+ 2NaOH\(\rightarrow\) Cu(OH)2+ 2NaCl
b,
Al+ 3/2Cl2 \(\underrightarrow{^{to}}\)AlCl3
AlCl3+ 3NH3+ 3H2O\(\rightarrow\)Al(OH)3+ 3NaCl
2Al(OH)3 \(\underrightarrow{^{to}}\) Al2O3+ 3H2O
Al2O3+ 6HNO3 \(\rightarrow\)2Al(NO3)3+ 3H2O
2Al(NO3)3+ 3Mg\(\rightarrow\) 3Mg(NO3)2+ 2Al
1,
2Cu + O2 → 2CuO
CuO + H2SO4 → CuSO4 + H2O
CuSO4 + BaCl2 → CuCl2 + BaSO4
CuCl2 + 2AgNO3 → 2AgCl + Cu(NO3)2
Cu(NO3)2 + 2NaOH → Cu(OH)2 + 2NaNO3
Cu(OH)2 → CuO + H2O
2,
C + O2 → CO2
CO2 + C → 2CO
2CO + O2 → 2CO2
CO2 + NaOH → NaHCO3
2NaHCO3 → Na2CO3 + CO2 + H2O2
Na2CO3 + CaCl2 → 2NaCl + CaCO3
CaCO3 → CaO + CO2
3,
Cl2 + 2H2 → 2HCl
2HCl → 2H2 + Cl2
Cl2 + 2Na → 2NaCl
2NaCl → 2Na + Cl2
Cl2 + 2NaOH → NaClO + NaCl + H2O
NaClO + 2HCl → NaCl + Cl2 + H2O
4,
2H2O → 2H2 + O2
2H2 + O2 → 2H2O
2H2O + Cl2 → 2HClO + 2HCl
2HClO + 2HCl → Cl2 + 2H2O
Cl2 + 2KOH → KCl + KClO
KClO + 2HCl→ 2KCl + H2O
a)
(1) \(Cu+2H2SO4\left(đ\right)-^{t0}->CuSO4+SO2\uparrow+2H2O\)
\(\left(2\right)CuSO4+BaCl2->CuCl2+BaSO4\downarrow\)
(3) \(CuCl2+2AgNO3->Cu\left(NO3\right)2+2AgCl\downarrow\)
(4) \(Cu\left(NO3\right)2+2NaOH->Cu\left(OH\right)2\downarrow+2NaNO3\)
(5) \(Cu\left(OH\right)2-^{t0}->CuO+H2O\)
(6) \(CuO+2HCl->CuCl2+H2O\)
(7) \(CuCl2-^{t0}->Cu+Cl2\uparrow\)
(8) \(Cu+Cl2-^{t0}->CuCl2\)
(9) \(CuCl2+2NaOh->Cu\left(OH\right)2\downarrow+2NaCl\)
b)
\(4Na+O2-^{t0}->2Na2O\)
\(Na2O+H2O->2NaOH\)
\(2NaOH+CO2->Na2CO3+H2O\)
\(Na2CO3+H2SO4->Na2SO4+CO2\uparrow+H2O\)
\(Na2SO4+BaCl2->2NaCl+BaSO4\downarrow\)
\(2NaCl+2H2O-\xrightarrow[có-màng-ngăn]{đpdd}2NaOH+Cl2\uparrow+H2\uparrow\)
\(3NaOH+H3PO4->Na3PO4+3H2O\)
\(CuO+H_2SO_4\rightarrow CuSO_4+H_2O\\ CuSO_4+Ba\left(NO_3\right)_2\rightarrow BaSO_4+Cu\left(NO_3\right)_2\\ Cu\left(NO_3\right)_2+2KOH\rightarrow Cu\left(OH\right)_2+2KNO_3\\ Cu\left(OH\right)_2\rightarrow\left(t^o\right)CuO+H_2O\\ CuO+2HCl\rightarrow CuCl_2+H_2O\\ CuCl_2\rightarrow\left(t^o\right)Cu+Cl_2\)
\((1)Cu+2H_2SO_{4(\text{đ})}\xrightarrow{t^o} CuSO_4+2H_2O+SO_2\uparrow\\ (2)CuSO_4+BaCl_2\to CuCl_2+BaSO_4\downarrow\\ (3)CuCl_2+2NaOH\to Cu(OH)_2\downarrow +2NaCl\\ (4)Cu(OH)_2\xrightarrow{t^o}CuO+H_2O\\ (5)CuO+H_2\xrightarrow{t^o}Cu+H_2O\)
\(a,2Al_2O_3\rightarrow\left(đpnc,criolit\right)4Al+3O_2\\ 2Al+6HCl\rightarrow2AlCl_3+3H_2\\ AlCl_3+3NaOH\rightarrow Al\left(OH\right)_3+3NaCl\\ 2Al\left(OH\right)_3\rightarrow\left(t^o\right)Al_2O_3+3H_2O\\ Al_2O_3+3H_2SO_4\rightarrow Al_2\left(SO_4\right)_3+3H_2O\)
\(b,2Cu+O_2\rightarrow\left(t^o\right)2CuO\\ CuO+2HCl\rightarrow CuCl_2+H_2O\\ CuCl_2+2KOH\rightarrow Cu\left(OH\right)_2+2KCl\\ Cu\left(OH\right)_2\rightarrow\left(t^o\right)CuO+H_2O\)
A/
Cu(OH)2 => (to) CuO + H2O
CuO + H2 => (to) Cu + H2O
Cu +Cl2 => CuCl2
A/
Cu(OH)2\(\xrightarrow[]{to}\) CuO+ H2O
CuO+ H2\(\xrightarrow[]{to}\) Cu+ H2O
Cu+ 2FeCl3\(\rightarrow\) 2FeCl2+ CuCl2
B/
CuO+ CO\(\xrightarrow[]{to}\) Cu+ CO2
Cu+ \(\frac{1}{2}\)O2+ H2O\(\rightarrow\) Cu(OH)2
Cu(OH)2+ 2HCl\(\rightarrow\) CuCl2+ 2H2O
C/
CuO+ C2H5OH\(\rightarrow\) CH3CHO+ Cu(OH)2\(\downarrow\)+ H2O
Cu(OH)2+ 2HCl\(\rightarrow\) CuCl2+ 2H2O
CuCl2+ Fe\(\rightarrow\) FeCl2+ Cu
D/
2Cu+ O2\(\xrightarrow[]{to}\) 2CuO
CuO+ C2H5OH\(\rightarrow\) CH3CHO+ Cu(OH)2\(\downarrow\)+ H2O
Cu(OH)2+ 2HCl\(\rightarrow\) CuCl2+ 2H2O
\(CO_2+C\rightarrow2CO\)
\(CuO+CO\rightarrow Cu+CO_2\)
\(Cu+Cl_2\rightarrow CuCl_2\)
\(Ca\left(OH\right)_2+CuCl_2\rightarrow Cu\left(OH\right)_2\downarrow+CaCl_2\)
\(Cu\left(OH\right)_2\rightarrow CuO+H_2O\)
\(CuO+H_2\rightarrow Cu+H_2O\)