Bob puts several pieces of dry ice inside an empty water bottle and covers the spout with a balloon. After 5 minutes the balloon is inflated. Elaborate on what process is occurring.
A) The expanding gas is exerting pressure and doing work on the walls of the balloon causing it to inflate.
B) Quick moving molecules of the developing balloon use the gas to create work and put energy into the system.
C) The slow moving particles of the gas are transferring entropy to the expanding balloon causing it to weaken.
D) Energy is converted to enthalpy as the compression dry ice particles occurs and the gas collides with other gas particles.

One of the cell membrane's functions is to protect the cell keep wastes in the cell create new cells keep light out of the cell

Answer asap need 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.

Which type of intermolecular attractions holds ammonia molecules together with other ammonia molecules?