Three minerals were analysed and found to have the following compositions.A 4.0g calcium 3.8g fluorineB 6.4g copper 5.6g iron 6.4g sulphurC 51.6% copper 9.7% carbon and the remainder oxygenCalculate the formulae of each mineralDo your working on a separate sheet and include with your work for markingHow do you do this, i am confused, please help
