Tightly packed molecules that vibrate in place describe a
O solid
O liquid
gas

What does a particular point on a line of a phase diagram represent? o a. the maximum temperature a substance can exist at without bonds breaking b. the pressure created by the kinetic energy of molecules at a particular temperature c. the melting point or boiling point of a substance at a specific pressure d. the conditions in which temperature and pressure have equal effects on a substance

How many miles of water are produced if 5.43 mol pbo2 are consumed

Use examples from the article to explain one positive and one negative effect that chemistry has had on society.