D. both a
5. It dissolves more substances than any other?
a. sugar
b. salt
c. water
d. pebble

Ascientist measures the speed of sound in a monatomic gas to be 449 m/s at 20∘c. what is the molar mass of this gas?

8. what happens to matter during a chemical reaction

Does the number of ions in solution increase, decrease, or remain constant? it continuously decreases. it continuously increases. it decreases at first, then increases. it increases at first, then decreases.