1) Ca+H2O=CaO+H2
2)H2+Cl=2HCl
3)6HCl+2Al=2AlCl3+3H2
4)AlCl3+3NaOH=3NaCl+Al(OH)3
5)2Al(OH)3=<span>Al2O3 +3H2O</span>
Уравнение химической реакции
2Na+2H2O=2NaOH+H2
1 задание
<span>2Mg + O2 = 2MgO
</span><span> MgO + 2HCl = MgCl2 + H2O
</span><span>Mgcl2+2Agno3=Mg(no3)2+2Agcl
</span><span>2Mg(NO3)2 (нагрев) = 2MgO + 4NO2 + O2
</span>3MgO+2H3PO4=Mg3(PO4)2+3H2O<span>
</span>