Can you guy pleas answer this questions
 4. Would you expect a substance to be a solid, liquid, or gas at absolute
 zero? Explain your answer.
 5. Describe what happens, at the molecular level, during melting.
 6. Describe what happens, at the molecular level, when a substance boils.
 7. What is the most common phase of matter in the universe?
 8. What is plasma? Where can you find plasma?