Write a formula for each of the following:

  1. sodium sulphite   is  Na2SO3 because we need two Na+ for every one sulfite (SO32- ) ion.
  2. magnesium carbonate   is  MgCO3 because we need one Mg2+ for every CO32- ion.
  3. aluminum hypochlorite  is Al(ClO)3 because for every one Al3+ ion, we need three hypochlorite (ClO-) ions

Give the name of each of the following:

  1. HNO2  is nitrous acid.
  2. Ca3(PO3)2   is calcium phospite.