Calculating masses in reactions

• the 5 steps to awnsering a question like this ?

  what mass of magnesium oxide is produced when 60g of magnesium is burnt in air

  1. write out balanced equation
  2. work out realtive formula masses of reactants
  3. calculate number of moles (moles = mass/Mr)
  4. look at ratio of moles
  5. calculate mass of number of moles (mass= moles x Mr)