TASK DEFINITION: Given a scientific question, generate a correct answer to it.
PROBLEM: When atoms gain or lose electrons, they can form electrically charged particles called what?

SOLUTION: ions

PROBLEM: What is the term for the movement of molecules from an area of high concentration to an area of low concentration?

SOLUTION: diffusion

PROBLEM: Liquid hcl can be used to do what to the ph of a swimming pool?

SOLUTION:
lower it