It would be 35g because you can break the ice chunk into as many pieces as you want when you combine them back together you'll always get the same weight
Beryllium, Magnesium, Calcium....etc have two valence electrons
The change is that the piston gets hotter? (Theres more heat in it)
The motion of particles can be changed by the temperature you put it at.
Answer:
I believe the answer would be A, remain 5g because heating the balloon would increase the speed of the gas molecules, but not necessarily change the amount
