Which of the following processes does NOT facilitate containment?

Aballoon inflated with three breaths of air has a volume of 1.7 l. at the same temperature and pressure, what is the volume of the balloon if five more same-sized breaths are added to the balloon?

If 1.8 l of water is added to 2.5l of a 7.0 molarity koh solution, what is the molarity of the new solution

When electrolyzing copper (ll) chloride, what reaction takes place at the anode? what reaction takes place at the cathode?