Question

1. which of the following are examples of physical changes? select all that apply. steel rusting ice melting paper burning acetone evaporating

Explanation:

A physical change is a change in which the form or appearance of matter changes, but not its chemical composition. Ice melting is a phase - change from solid to liquid without changing the chemical nature of water ($H_2O$). Acetone evaporating is a phase - change from liquid to gas without altering the chemical identity of acetone. Steel rusting is a chemical change as iron reacts with oxygen to form iron oxide. Paper burning is a chemical change as paper reacts with oxygen and forms new substances like carbon dioxide and water vapor.

Answer:

Ice melting, Acetone evaporating