instruction:
Given a scientific question and its correct answer, generate supporting facts for the answer. This supporting fact can be an explanation for the answer to the given question.
question:
Question: What substances dissociate into ions when dissolved in water? Answer: ionic
answer:
Ionic substances dissociate into ions when they dissolve in water, but most molecular substances do not.

question:
Question: Pressure, volume, and temperature are related by which law? Answer: gas law
answer:
Pressure, volume, and temperature are related by the combined gas law.

question:
Question: In their pure form, all elements have an oxidation number of what? Answer: zero
answer:
All elements have an oxidation number of zero in their pure form.