Which uses of iron are due to its chemical properties? check all that apply.

producing colored sparks in fireworks changing from liquid to gas at 2,862°c
rusting in the presence of water and oxygen
changing from solid to liquid if heated to 1,538°c
conducting electricity and heat

producing colored sparks in fireworks and rusting in the presence of water and oxygen

Explanation: Chemical properties are properties which involve change in chemical composition of substances.

Rusting is oxidation of iron to ferric oxide.

Colored sparks are produced when hot iron reacts with oxygen in the presence of oxygen.

Changing from liquid to gas at 2,862°C: It represents a physical change as there is no change in chemical composition.

Changing from solid to liquid if heated to 1,538°C:  It represents a physical change as there is no change in chemical composition.

Conducting electricity and heat: It represents a physical change as there is no change in chemical composition.