Which state of matter has neutral particles that bounce off one another as they collide?
Gas
Liquid
Plasma
Solid
Answers (1)
This is the sort of question that you can answer with common sense, even if you don't know the answer at the start.
Plasma is defined as charged particles, so that is out.
Solid is not particles, so that is out.
Liquid is not particles, so that is out.
Gas is the answer, even if you don't know why. (Because gas is defined as neutral particles.)