课前检测1.酸+碱→2.酸+盐→3.碱+盐→盐+水新酸+新盐新碱+新盐NaOH+HCl=NaCl+H2OAgNO3+HCl=AgCl↓+HNO3有白色沉淀产生2NaOH+CuSO4=Na2SO4+C...
