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![](https://rs.olm.vn/images/avt/0.png?1311)
b) \(CuSO_4\underrightarrow{1}Cu\left(OH\right)_2\underrightarrow{2}CuO\underrightarrow{3}CuCl_2\underrightarrow{4}NaCl\)
(1) \(CuSO_4+2NaOH\rightarrow Cu\left(OH\right)_2+Na_2SO_4\)
(2) \(Cu\left(OH\right)_2\underrightarrow{t^o}CuO+H_2O\)
(3) \(CuO+2HCl\rightarrow CuCl_2+H_2O\)
(4) \(CuCl_2+2NaOH\rightarrow Cu\left(OH\right)_2+2NaCl\)
Chúc bạn học tốt
Câu 2 :
a) \(S\underrightarrow{1}SO_2\underrightarrow{2}SO_3\underrightarrow{3}H_2SO_4\underrightarrow{4}BaSO_4\)
(1) \(S+O_2\underrightarrow{t^o}SO_2\)
(2) \(2SO_2+O_2\underrightarrow{t^oV_2O_5}2SO_3\)
(3) \(SO_3+H_2O\rightarrow H_2SO_4\)
(4) \(H_2SO_4+BaCl_2\rightarrow2HCl+BaSO_4\)
Chúc bạn học tốt
![](https://rs.olm.vn/images/avt/0.png?1311)
Bài 2:
\(CaO+H_2O\rightarrow Ca\left(OH\right)_2\)
\(Ca\left(OH\right)_2+Na_2CO_3\rightarrow CaCO_3\downarrow+2NaOH\)
Bài 3
a)
\(Na_2O+H_2O\rightarrow2NaOH\)
b)
\(BaO+H_2O\rightarrow Ba\left(OH\right)_2\)
c)
\(2NaOH+CuSO_4\rightarrow Na_2SO_4+Cu\left(OH\right)_2\downarrow\)
\(Na_2SO_4+Ba\left(OH\right)_2\rightarrow BaSO_4\downarrow+2NaOH\)
d)
\(2NaOH+CuSO_4\rightarrow Cu\left(OH\right)_2\downarrow+Na_2SO_4\)
e)
\(FeCl_2+2NaOH\rightarrow Fe\left(OH\right)_2\downarrow+2NaCl\)
![](https://rs.olm.vn/images/avt/0.png?1311)
2AgNO3 + CaCl2 → 2AgCl + Ca(NO3)2
K2SO4 + Ba(OH)2 → BaSO4 + 2KOH
Fe2(SO4)3 + 3Ba(OH)2 → 3BaSO4 + 2Fe(OH)3
Na2CO3 + BaCl2 → BaCO3 + 2NaCl
Ba(HCO3)2 + Na2CO3 → BaCO3 + 2NaHCO3
MgCO3 + K2SO4 ----//---->
Ca(HCO3)2 + 2KOH → CaCO3 + K2CO3 + 2H2O
2NaHSO4 + 2KOH → K2SO4 + Na2SO4 + 2H2O
2KOH + H2SO4 → K2SO4 + 2H2O
Ba(OH)2 + 2HCl → BaCl2 + 2H2O
Fe(OH)2 + 2HCl → FeCl2 + 2H2O
2Al(OH)3 + 3H2SO4 → Al2(SO4)3 + 6H2O
Na2CO3 + 2HCl → 2NaCl + H2O + CO2
Ca(HCO3)2 + 2HNO3 → Ca(NO3)2 + 2H2O + 2CO2
2NaOH + CuSO4 → Na2SO4 + Cu(OH)2
Ca(OH)2 + BaCl2 ----//---->
Fe2(SO4)3 + 6KOH → 3K2SO4 + 2Fe(OH)3
FeSO4 + Cu(OH)2 ----//---->
![](https://rs.olm.vn/images/avt/0.png?1311)
pthh viết không đúng
a. Agno3+hcl -> Agcl+Hno3
b.Agno3+Nacl -> Agcl+Nano3
c.2Agno3 + cu -> 2ag+ Cu(No3)2
d.2Agno3+ Cu(oh)2 -> 2agoh+ Cu(NO3)2
pthh viết không đúng
a. Agno3+hcl -> Agcl+Hno3
b.Agno3+Nacl -> Agcl+Nano3
c.2Agno3 + cu -> 2ag+ Cu(No3)2
d.2Agno3+ Cu(oh)2 -> 2agoh+ Cu(NO3)2
![](https://rs.olm.vn/images/avt/0.png?1311)
a)\(K_2SO_3+2HCl\rightarrow2KCl+H_2O+SO_2\uparrow\)
\(2SO_2+O_2\underrightarrow{t^o,xt}2SO_3\)
\(SO_3+H_2O\rightarrow H_2SO_4\)
\(H_2SO_4+CuCl_2\rightarrow HCl+CuSO_4\)
\(CuSO_4+Ba\left(OH\right)_2\rightarrow Cu\left(OH\right)_2\downarrow+BaSO_4\downarrow\)
b)\(CaCO_3\underrightarrow{t^o}CaO+CO_2\uparrow\)
\(CaO+H_2O\rightarrow Ca\left(OH\right)_2\)
\(Ca\left(OH\right)_2+Na_2CO_3\rightarrow CaCO_3\downarrow+2NaOH\)
\(CaCO_3+2HCl\rightarrow CaCl_2+H_2O+CO_2\uparrow\)
\(CaCl_2+H_2SO_4\rightarrow CaSO_4+2HCl\)
c)\(Na_2O+H_2O\rightarrow2NaOH\)
\(2NaOH+CO_2\rightarrow Na_2CO_3+H_2O\)
\(Na_2CO_3+H_2SO_4\rightarrow Na_2SO_4+H_2O+CO_2\uparrow\)
\(Na_2SO_4+BaCl_2\rightarrow2NaCl+BaSO_4\downarrow\)
\(2NaCl+2H_2O\rightarrow H_2+Cl_2+2NaOH\)
![](https://rs.olm.vn/images/avt/0.png?1311)
a)
$2Na + 2H_2O \to 2NaOH + H_2$
$Na_2O + H_2O \to 2NaOH$
$Na_2CO_3 + Ca(OH)_2 \to CaCO_3 + 2NaOH$
$BaO + H_2O \to Ba(OH)_2$
$Ba(OH)_2 + Na_2CO_3 \to BaCO_3 + 2NaOH$
b)
$CuO + 2HCl \to CuCl_2 + H_2O$
$CuCl_2 + 2NaOH \to Cu(OH)_2 + 2NaCl$
$CuCl_2 + Ca(OH)_2 \to Cu(OH)_2 + CaCl_2$
$CuSO_4 + 2NaOH \to Cu(OH)_2 + Na_2SO_4$
$CuSO_4 + Ca(OH)_2 \to CaSO_4 + Cu(OH)_2$
$Cu(NO_3)_2 + 2NaOH \to Cu(OH)_2 + 2NaNO_3$
$Cu(NO_3)_2 + Ca(OH)_2 \to Ca(NO_3)_2 + Cu(OH)_2$
a)
2Na+2H2O→2NaOH+H22Na+2H2O→2NaOH+H2
Na2O+H2O→2NaOHNa2O+H2O→2NaOH
Na2CO3+Ca(OH)2→CaCO3+2NaOHNa2CO3+Ca(OH)2→CaCO3+2NaOH
BaO+H2O→Ba(OH)2BaO+H2O→Ba(OH)2
Ba(OH)2+Na2CO3→BaCO3+2NaOHBa(OH)2+Na2CO3→BaCO3+2NaOH
b)
CuO+2HCl→CuCl2+H2OCuO+2HCl→CuCl2+H2O
CuCl2+2NaOH→Cu(OH)2+2NaClCuCl2+2NaOH→Cu(OH)2+2NaCl
CuCl2+Ca(OH)2→Cu(OH)2+CaCl2CuCl2+Ca(OH)2→Cu(OH)2+CaCl2
CuSO4+2NaOH→Cu(OH)2+Na2SO4CuSO4+2NaOH→Cu(OH)2+Na2SO4
CuSO4+Ca(OH)2→CaSO4+Cu(OH)2CuSO4+Ca(OH)2→CaSO4+Cu(OH)2
Cu(NO3)2+2NaOH→Cu(OH)2+2NaNO3Cu(NO3)2+2NaOH→Cu(OH)2+2NaNO3
Cu(NO3)2+Ca(OH)2→Ca(NO3)2+Cu(OH)2
![](https://rs.olm.vn/images/avt/0.png?1311)
Bài 6:
a, \(NaCl+AgNO_3\rightarrow NaNO_3+AgCl_{\downarrow}\)
b, Không pư.
c, \(Fe+CuCl_2\rightarrow FeCl_2+Cu\)
d, \(BaCl_2+H_2SO_4\rightarrow2HCl+BaSO_{4\downarrow}\)
e, Không pư.
g, \(BaCO_3+2HCl\rightarrow BaCl_2+H_2O+CO_2\)
h, \(CaSO_3+H_2SO_4\rightarrow CaSO_{4\left(ittan\right)}+H_2O+SO_2\)
i, \(FeCl_2+Ba\left(OH\right)_2\underrightarrow{khongcokk}BaCl_2+Fe\left(OH\right)_{2\downarrow}\)
k, \(Na+H_2O\rightarrow NaOH+\dfrac{1}{2}H_2\)
\(2NaOH+FeCl_2\underrightarrow{khongcokk}2NaCl+Fe\left(OH\right)_{2\downarrow}\)
l, \(3Zn+2FeCl_3\rightarrow3ZnCl_2+2Fe\)
l, Không pư.
m, Không pư.
Bạn tham khảo nhé!
![](https://rs.olm.vn/images/avt/0.png?1311)
\(CaCO_3\xrightarrow[]{t^o}CaO+CO_2\uparrow\)
\(Ba\left(HCO_3\right)_2\xrightarrow[]{t^o}BaCO_3+CO_2+H_2O\)
\(2Fe\left(OH\right)_3\xrightarrow[]{t^o}Fe_2O_3+3H_2O\)
\(4Al\left(NO_3\right)_3\xrightarrow[]{t^o}2Al_2O_3+12NO_2\uparrow+3O_2\uparrow\)
\(BaSO_3\xrightarrow[]{t^o}BaO+SO_2\uparrow\)
Có điều kiện to trên mỗi mũi tên nhé:
CaCO3 -> CaO + CO2
2Fe(OH)3 -> Fe2O3 + 3H2O
Ba(HCO3)2 -> BaCO3 + CO2 + H2O
BaSO3 -> BaO + CO2
$Ba(OH)_2 + H_2SO_4 \to BaSO_4 + 2H_2O$
$Na_2CO_3 + 2HCl \to 2NaCl + CO_2 + H_2O$
$CuSO_4 + 2NaOH \to Cu(OH)_2 + Na_2SO_4$
$HCl + AgNO_3 \to AgCl + HNO_3$
1. \(BaCl_2+H_2SO_4\) → \(BaSO_4+HCl\)
2. \(Na_2CO_3+2HCl\text{→}H_2O+2NaCl+CO_2\)
3. \(CuSO_4+2NaOH\text{→}Cu\left(OH\right)_2+Na_2SO_4\)
4. \(NaCl+AgNO_3\text{→}AgCl+NaNO_3\)