A truck was carrying a substance in a tank. the molecules of that substance were moving away from each other. the truck parked overnight in a place where energy transferred out of the substance. in the morning the substance was a gas .how were the molecules moving in the morning? explain why the molecules are moving that way after the energy was transferred out of them. Anyone please help me with this i don’t get it and it’s due

Answer asap need to be answered by wednesday morning explain how a buffer works, using an ethanoic acid / sodium ethanoate system including how the system resists changes in ph upon addition of a small amount of base and upon addition of a small amount of acid respectively. include the following calculations in your i. calculate the ph of a solution made by mixing 25cm3 0.1m ch3cooh and 40cm3 0.1m ch3coo-na+. [ka = 1.74 x 10-5 m] ii. calculate the ph following the addition of a 10cm3 portion of 0.08 m naoh to 500cm3 of this buffer solution. iii. calculate the ph following the addition of a 10cm3 portion of 0.08 m hcl to 200cm3 of the original buffer solution.