I know it’s a chemical change but can someone explain to me why it’s a physical change please?

As air becomes more dense, (select all that apply) o. air weighs less o. gas molecules are closer together o. air is colder o. air weighs more o. gas molecules are further apart o. air is hotter

Which property of water causes water drops to bead on a freshly waxed car?

What three things does a balanced equation show you?