If you had 16 tiles and each tile cost 80 cents how much change would you dmget back if you paid with 2 100 bills

What is avogadro’s number, and why is it useful

What is the most common reason for matter changing its state?

Which best describes the present-day universe? opaque, expanding very slowly, stars produce heavy elements transparent, expanding at an accelerated rate, stars produce heavy elements opaque, expanding at an accelerated rate, stars produce only hydrogen and helium transparent, expanding very slowly, stars produce only hydrogen and helium