<span>CuO + 2 HNO3 = Cu(NO3)2 + H2O
</span><span>2 Mg + O2 = 2 MgO
</span><span>MgO + H2SO4 = H2O + MgSO<span>4
</span></span><span>MgSO4 + 2 NaOH = Mg(OH)2 + Na2SO<span>4
</span></span><span>Mg(OH)2 = H2O + MgO
</span><span>MgO + 2 HNO3 = Mg(NO3)2 + H2O</span>
Fe + 2HCl = FeCl₂ + H₂↑
FeCl₂ + Hg₂(NO₃)₂ = Fe(NO₃)₂ + Hg₂Cl₂↓
Fe(NO₃)₂ + 2NaOH = Fe(OH)₂↓ + 2NaNO₃
Fe(OH)₂ (t)= FeO + H₂O↑
FeO + H₂ (t)= Fe + H₂O↑
SO2 + Br2 + 2H2O = H2SO4 + 2HBr
2LiOH+CaCO3=Li2CO3+Ca(OH)2
LiOH+HNO3=LiNO3+H20
2LiOH+CuBr2=2LiBr+Cu(OH)2
2LiOH+SO3=Li2SO4+H2O
6LiOH+Mg3(PO4)2=2LI3PO4+3Mg(OH)2