Asubstance is made of rapidly, independently moving atoms that collide frequently. this substance is most likely a

At very high pressures, gases become and will eventually a) more dense; become hotter b) more dense; change to a liquid or solid c) less dense; combust d) less dense; turn into a liquid

The frequencies refer to the sample data collected from a population of interest when performing a hypothesis test comparing two or more population proportions.

Properties seen when one one substance changes to another are known as properties