Question

Write the molecular formula of compound that can be formed by the combination of following ions Cu2+, Na+, Fe3+, Cl-1,SO4 2, PO4 -3

Answer 1

Answer:

Na CL ,Cu SO4 , Fe PO4, are the compunds

Answer 2

Compounds are : Copper sulphate, copper chloride, ferric sulphate, copper phosphate, sodium sulphate, sodium chloride, sodium phosphate, ferric sulphate, ferric phosphate.

Explanation:

• There are 7 ions given out of which 3 are cations (metals) and 3 are anions (non-metals).
• Copper (II) reacts with ions of Cl, SO4 and PO4 to give  CuCl₂ , CuSO4 and Cu₃(PO₄)₂.
• Ferric (III) react with the ions to give FeCl3, Fe2(SO4)3 and  FePO₄.
• Sodium has a valency of +1 and thus react with the anions to give NaCl, Na2SO4 and Na3PO4.