\(\left(1\right)2Mg+O_2\underrightarrow{t^o}2MgO\)
\(\left(2\right)MgO+HCl\rightarrow MgCl_2+H_2O\)
\(\left(3\right)MgCl_2+Na_2CO_3\rightarrow MgCO_3+2NaCl\)
\(\left(4\right)MgCO_3+\left(NH_4\right)_2SO_4\rightarrow MgSO_4+H_2O+2HNO_3+CO_2\)
\(\left(5\right)MgSO_4+Ba\left(NO_3\right)_2\rightarrow Mg\left(NO_3\right)_2+BaSO_4\)
\(\left(6\right)Mg\left(NO_3\right)_2+2NaOH\rightarrow Mg\left(OH\right)_2+2NaNO_3\)
\(\left(7\right)Mg\left(OH\right)_2\rightarrow MgO+H_2O\)
\(\left(8\right)MgCl_2+2NaOH\rightarrow Mg\left(OH\right)_2+2NaCl\)
\(\left(9\right)MgCO_3+2HNO_3\rightarrow Mg\left(NO_3\right)_2+CO_2+H_2O\)
Câu 1 :
a.
1. 2Mg + O2 ---to---> 2MgO
2. 2MgO + HCl -> MgCl2 + H2O
3. MgCl2 + Na2CO3 ---to--> MgCO3 + 2NaCl
4.MgCO3 + H2SO4 ---to---> MgSO4 + H2O + CO2
5. MgSO4 + 2HNO3 ---to--> Mg(NO3)2 + H2SO4
6. Mg(NO3)2 + 2H2O -> Mg(OH)2 + 2HNO3
7. Mg(OH)2 ---to---> MgO + H2O
8. MgCl2 + H2O -> Mg(OH)2 + HCl
9. MgCO3 + 2HNO3 ----to---> Mg(NO3)2 + H2O + CO2
