Answer to Question #202296 in Inorganic Chemistry for someone

Question

Which scenarios are definite signs that a chemical reaction has occurred?

Select all that apply.

• A piece of iron turns brown with rust.
• Water is heated and releases a water vapor.
• Two liquids are mixed together and release light.
• Blue and yellow paint mix to make green paint.

(more than one answer)

Answer 1

I) A piece of iron turns brown with rust.

ii) Two liquids are mixed together and release light.