In this task, you are given a question and answer for that. The answer will fill in the blank or will complete the unfinished question. Your task is to provide an explanation based on the given question or fill-in-the-blank statement, and answer.

[EX Q]: Question: Will drops a ball from 100 feet at the same time that Tony drops a ball from 50 feet. Whose ball has more potential energy? 
 Answer: Tony's
[EX A]: So the higher an object is above a surface, the more potential energy it has.

[EX Q]: Question: If something has a small surface area and is being mixed with something else it will react 
 Answer: slower
[EX A]: Surface Area of Reactants When a solid substance is involved in a chemical reaction, only the matter at the surface of the solid is exposed to other reactants. If a solid has more surface area, more of it is exposed and able to react.

[EX Q]: Question: If Mary drops a 1 cm piece of salt into a glass of water and a .5 cm piece of salt into the water, which will dissolve slower? 
 Answer: 1 cm piece of salt
[EX A]:
Smaller pieces dissolve more easily.