盐酸和氢氧化钙反应：2HCl+Ca(OH)2===CaCl2+2H2O；氢氧化铝和稀盐酸反应：3HCl+Al(OH)3===AlCl3+3H2O；硫酸和烧碱反应：H2SO4+2NaOH===Na2SO4+2H2O。
中和反应的化学方程式
NaOH+HCl=NaCl+H2O
NaOH+HNO3=NaNO3+H2O
2NaOH+H2SO4=Na2SO4+2H2O
3NaOH+H3P4=Na3PO4+3H2O
2NaOH+H2S=Na2S+H2O
NaOH+HCN=NaCN+H2O
KOH+HCl=KCl+H2O
KOH+HNO3=KNO3+H2O
2KOH+H2SO4=K2SO4+2H2O
3KOH+H3P4=K3PO4+3H2O
2KOH+H2S=K2S+H2O
KOH+HCN=KCN+H2O