I need help filling this blank.

The difference between a "cool" solid and a "hot" solid is that the particles vibrate __________ in the cool solid. Would "freely" fit the blank?

The difference between a solid and a liquid at the same temperature is that the particles of the liquid can move ____________ each other. Would "faster fill the blank?

Car bodies can also rust, which is called_________, a __________ property.
I don't know about the first one, but would the second blank be physical?

1 answer

more ; around ; iron oxide, chemical