chemical reactions

• metal carbonate +acid -->

  salt + water + carbon dioxide
• metal + acid -->

  salt+ hydrogen
• metal oxide + acid -->

  salt + water
• salt

  a compound formed when some or all of the hydrogen from an acid is replaced by a metal

  eg. CuSO4 - Cu replaced H from H2SO4
• metal hydroxide + acid -->

  salt + water
• acid + base -->

  salt + water
• acid + ammonia -->

  ammonium salt