CHEMICAL FORMULAE OF IONIC COMPOUNDS

Which of the following is the formulae of iron(III) oxide?

• FeO

• FeO₂

• Fe₂O₃

• Fe₃O₂

Which of the following is the formulae of zinc chloride?

• ZnC

• ZnCl₂

• ZnCh₃

• Zn₂Cl

Which is the formulae of iron(II) hydroxide?

• FeOH

• FeOH₂

• Fe(OH)₂

• Fe₂OH

Which is the formulae of sodium sulfate?

• Na₂SO₄

• NaSO₄

• Na₂S

• Na(SO₄)₂

Which is the formulae of ammonium carbonate?

• NH₂CO₃

• NH₄CO₃

• NH₄CO₃

• (NH₄)₂CO₃

Which is the formulae of ammonium nitrate?

• NH₂NO₃

• NH₄NO₃

• NH₄NO₂

• (NH₄)₂NO₃