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1)\(Mg\left(OH\right)_2\underrightarrow{t^o}MgO+H_2O\)
2)\(MgO+H_2SO_4\rightarrow MgSO_4+H_2O\)
3)\(MgSO_4+BaCl_2\rightarrow MgCl_2+BaSO_4\downarrow\)
4)\(MgCl_2+2AgNO_3\rightarrow Mg\left(NO_3\right)_2+2AgCl\downarrow\)
5)\(MgSO_4+Ba\left(OH\right)_2\rightarrow BaSO_4\downarrow+Mg\left(OH\right)_2\downarrow\)
\(\left(1\right)Zn+H_2SO_4\rightarrow ZnSO_4+H_2\\ \left(2\right)ZnSO_4+BaCl_2\rightarrow ZnCl_2+BaSO_4\\ \left(3\right)ZnCl_2+2NaOH\rightarrow Zn\left(OH\right)_2+2NaCl\\ \left(4\right)Zn\left(OH\right)_2\rightarrow^{t^o}ZnO+H_2O\)
a)
(1) 2Al + 6HCl --> 2AlCl3 + 3H2
(2) AlCl3 + 3NaOH --> Al(OH)3\(\downarrow\) + 3NaCl
(3) 2Al(OH)3 + 3H2SO4 --> Al2(SO4)3 + 6H2O
(4) Al2(SO4)3+ 3Ba(NO3)2 --> 2Al(NO3)3 + 3BaSO4\(\downarrow\)
b)
(1) 2Na + 2H2O --> 2NaOH + H2
(2) 2NaOH + H2SO4 --> Na2SO4 + 2H2O
(3) Na2SO4 + BaCl2 --> BaSO4\(\downarrow\) + 2NaCl
(4) NaCl + AgNO3 --> NaNO3 + AgCl\(\downarrow\)
c)
(1) 2Mg + O2 --to--> 2MgO
(2) MgO + 2HCl --> MgCl2 + H2O
(3) MgCl2 + 2NaOH --> Mg(OH)2\(\downarrow\) + 2NaCl
(4) Mg(OH)2 + H2SO4 --> MgSO4 + 2H2O
a)\(2Al+6HCl\rightarrow2AlCl_3+3H_2\)
\(2AlCl_3+3Ba\left(OH\right)_2\rightarrow2Al\left(OH\right)_3+3BaCl_2\)
\(2Al\left(OH\right)_3+3H_2SO_4\rightarrow Al_2\left(SO_4\right)_3+3H_2O\)
\(Al_2\left(SO_4\right)_3+3Ba\left(NO_3\right)_2\rightarrow2Al\left(NO_3\right)_3+3BaSO_4\)
b)\(2Na+2H_2O\rightarrow2NaOH+H_2\)
\(2NaOH+H_2SO_4\rightarrow Na_2SO_4+2H_2O\)
\(Na_2SO_4+BaCl_2\rightarrow2NaCl+BaSO_4\)
\(NaCl+HNO_3\rightarrow NaNO_3+HCl\)
Câu c em tự luyện tập nhé!!!
2Mg+O2--> 2MgO(1)
MgO+2HCl-->MgCl2+H2O(2)
MgCl2+2NaOH--> Mg(OH)2+2NaCl(3)
Mg(OH)2+CuSO4-->MgSO4+Cu(OH)2(4)
MgSO4+Ba(NO3)2-->Mg(NO3)2+BaSO4(5)
CuO+H2SO4-->CuSO4+H2O(1)
CuSO4+2NaOH-->Cu(OH)2+Na2SO4(2)
Cu(OH)2+2HCl-->CuCl2+2H2O(3)
CuCl2+2AgNO3-->Cu(NO3)2+2AgCl(4)
Cu(NO3)2+Mg-->Mg(NO3)2+Cu(5)
\(a)C+O_2\xrightarrow[]{t^0}CO_2\\ CO_2+2NaOH\rightarrow Na_2CO_3+H_2O\\ Na_2CO_3+H_2SO_4\rightarrow Na_2SO_4+CO_2+H_2O\\ b)FeSO_4+BaCl_2\rightarrow FeCl_2+BaSO_4\\ FeCl_2+2NaOH\rightarrow Fe\left(OH\right)_2+2NaCl\\ Fe\left(OH\right)_2\xrightarrow[]{t^0}FeO+H_2\\ c)2Mg+O_2\xrightarrow[]{t^0}2MgO\\ MgO+H_2SO_4\rightarrow MgSO_4+H_2O\\ MgSO_4+BaCl_2\rightarrow MgCl_2+BaSO_4\)
a)
$CaCO_3 \xrightarrow{t^o} CaO + CO_2$
$CaO + H_2O \to Ca(OH)_2$
$Ca(OH)_2 + 2HCl \to CaCl_2 + 2H_2O$
$CaCl_2 + 2AgNO_3 \to Ca(NO_3)_2 + 2AgCl$
b)
$2Mg + O_2 \xrightarrow{t^o} 2MgO$
$MgO + 2HCl \to MgCl_2 + H_2O$
$MgCl_2 + 2KOH \to Mg(OH)_2 + 2KCl$
$Mg(OH)_2 + H_2SO_4 \to MgSO_4 + 2H_2O$
Câu 3 :
a)
(1) \(2Mg+O_2\xrightarrow[]{t^o}2MgO\)
(2) \(MgO+2HCl\rightarrow MgCl_2+H_2O\)
(3) \(MgCl_2+2NaOH\rightarrow Mg\left(OH\right)_2+2NaCl\)
(4) \(Mg\left(OH\right)_2+H_2SO_4\rightarrow MgSO_4+2H_2O\)
b)
(1) \(Zn\left(OH\right)_2\xrightarrow[]{t^o}ZnO+H_2O\)
(2) \(ZnO+H_2SO_4\rightarrow ZnSO_4+H_2O\)
(3) \(ZnSO_4+BaCl_2\rightarrow ZnCl_2+BaSO_4\)