Human recreation can both help and harm the environment. a. Give an example of how human recreation could help the environment. (0.5

point)

Part of molten rock at mid-ocean ridges

Which statement is true about hcl? (5 points) select one: a. it is a salt because it increases the concentration of metallic ions. b. it is a salt because it is formed by the reaction of an acid and a base. c. it is an acid because it increases the concentration of hydroxyl ions. d. it is an acid because it increases the concentration of hydronium ions.

8. what happens to matter during a chemical reaction