lava is rock that has undergone a physical change and has liquefied. what is known about this change?\nthe…

lava is rock that has undergone a physical change and has liquefied. what is known about this change?\nthe lava gained mass.\nthe lava was burned into smoke.\nthe lava can cool back into rock.\nthe lava lost mass.

lava is rock that has undergone a physical change and has liquefied. what is known about this change?\nthe lava gained mass.\nthe lava was burned into smoke.\nthe lava can cool back into rock.\nthe lava lost mass.

Answer

Brief Explanations:

Physical changes are reversible. Lava liquefying from rock is a physical change, so it can cool back to rock. Mass is conserved in physical changes, so it neither gains nor loses mass, and it is not burned into smoke as that would be a chemical change.

Answer:

The lava can cool back into rock.