Chemical Formula

The formula of copper(II) oxide is

• CuO

• Cu₂O

• CuO₂

The formula of iron(III) oxide is

• FeO

• FeO₂

• Fe₂O

• Fe₂O₃

The formula of magnesium chloride is

• MgCl

• MgCl₂

• MgCl₃

The formula of calcium hydroxide is

• CaOH

• Ca(OH)₂

• Ca(OH)₃

The formula of sodium carbonate is

• NaCO₃

• Na(CO₃)₂

• Na₂CO₃

The name of KHCO₃ is

• potassium carbonate

• potassium hydrogencarbonate

The name of Cu(OH)₂ is

• copper hydroxide

• copper(I) hydroxide

• copper(II) hydroxide

The formula of silver nitrate is

• AgNO₃

• Ag₂NO₃

• Ag(NO₃)₂

The formula of sodium sulphate is

• NaSO₄

• Na₂SO₄

• Na(SO₄)₂

• Na₂(SO₄)₃

What is the name of CO

• Carbon oxide
• Carbon dioxide
• Carbon monoxide
• Carbon II oxide