Which substance contains more molecules, 10.0 g of N2H6 or 10.0 g of PCl3? Explain how you know.

If the particles in a sample of matter have an orderly arrangement and move only in place, the sample is a

Which of the following is most likely true about water in chemical systems? a) water dissolves nonpolar ionic compounds. b) water dissociates ionic compounds. c) water dissociates covalent molecules. d) water dissolves nonpolar covalent substances.

What would happen to a volleyball left outside in the winter? o o o o a. it would expand. b. it would lose air. c. it would shrink. d. it would explode.