Post Test: Chemical Reactions

The reaction q+r2=r2q is found to be first order in r2 and

Describe the difference between a. a hypothesis and a theory and b. an observation and an experiment.

What is a main difference between a mixture and a pure substance? a mixture is only a liquid, but a pure substance can be in any state.a mixture looks the same throughout, but a pure substance does not.1 a mixture can vary in composition, but a pure substance has a set composlo a mixture can be made up of a single compound, but a pure substance car