Science When reactions occur in unsealed containers, what two things are able to be exchanged freely between a system and its surroundings? Asked by arwen46 12 years ago 7/22/2013 2:28 AM Last updated by anonymous 12 years ago 7/24/2013 1:36 AM
When reactions occur in unsealed containers, matter and energy are both able to be exchanged freely between the system and surroundings.
