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+ Điều chế bazo tan :
\(K2O+H2O->2KOH\left(tan\right)\)
+ điều chế bazo không tan
\(CuO+2Hcl->CuCl2+H2O\)
\(Fe2O3+6Hcl->2FeCl3+3H2O\)
\(CuCl2+2KOh->Cu\left(OH\right)2\downarrow+2KCl\)
\(FeCl3+3KOH->Fe\left(OH\right)3\downarrow+3KCl\)
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)
\(FeCl_2+2NaOH\rightarrow Fe\left(OH\right)_2\downarrow+2NaCl\)
Bài 1: \(a,Fe+2HCl\rightarrow FeCl_2+H_2\)
\(b,Cu\left(OH\right)_2+2HCl\rightarrow CuCl_2+2H_2O\)
\(c,Na_2CO_3+2HCl\rightarrow2NaCl+CO_2+H_2O\)
\(d,Cu\left(OH\right)_2\underrightarrow{t^0}CuO+H_2O\)
\(Fe+2HCl\rightarrow FeCl_2+H_2\)
\(CuO+H_2\underrightarrow{t^0}Cu+H_2O\)
Tham khảo
a) Phương trình điều chế các dung dịch bazo :
Pt : CaO + H2O \(\rightarrow\) Ca(OH)2
Na2O + H2O \(\rightarrow\) 2NaOH
b) Phương trình điều chế các bazo không tan
Pt : CuO + H2O \(\rightarrow\) Cu(OH)2
Chúc bạn học tốt
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
\(Na+H_2O\rightarrow NaOH+\dfrac{1}{2}H_2\\ CuO+2HCl\rightarrow CuCl_2+H_2O\\ 2NaOH+CuCl_2\rightarrow Cu\left(OH\right)_2+2NaCl\\ Fe+2HCl\rightarrow FeCl_2+H_2O\\ FeCl_2+2NaOH\rightarrow Fe\left(OH\right)_2+2NaCl\\ H_2O-^{đpdd}\rightarrow H_2+\dfrac{1}{2}O_2\\ 4Fe\left(OH\right)_2+O_2-^{t^o}\rightarrow2Fe_2O_3+4H_2O\)
\(CuO+H_2O\rightarrow CU\left(OH\right)_2\\ Fe+2H_2O\rightarrow Fe\left(OH\right)_2\)
Bài 1
a) Fe+2HCl\(\rightarrow\)FeCl2+H2
b) Cu(OH)2+2HCl\(\rightarrow\)CuCl2+2H2O
c) Na2CO3+2HCl\(\rightarrow\)NaCl+CO2+H2O
d) Fe+CuCl2\(\rightarrow\)FeCl2+Cu
Bài 2:
CaO+H2O\(\rightarrow\)Ca(OH)2
Ca(OH)2+Na2CO3\(\rightarrow\)CaCO3+2NaOH
\(Fe_2O_3+6HCl\rightarrow2FeCl_3+3H_2O\)
\(Na_2O+H_2O\rightarrow2NaOH\)
\(\rightarrow\)
\(FeCl_3+3NaOH\rightarrow Fe\left(OH\right)_3+3NaCl\)
F e 2 O 3 + 6 H C l → 2 F e C l 3 + 3 H 2 O
N a 2 O + H 2 O → 2 N a O H
F e C l 3 + 3 N a O H → F e ( O H ) 3 + 3 N a C l