Question

Which use of iron is due to its chemical properties?

producing colored sparks in fireworks
changing from liquid to gas at 2,862°C
conducting electricity and heat
changing from solid to liquid if heated to 1,538°C

Answer 1

I think so it could be conducting electricity and heat

Answer 2

changes from liquid to gas at 2,862°C

Step-by-step explanation:

chemical changes are where you can't go back or change what's made. you can't change it after it's a gas.