What's a standard unit of measurement?

Which of the following statements about acidic water is true? a. acid has no effect on the h,o molecules. b. the solution contains a larger number of oh ions than h,o ions. c. the solution contains a larger number of h,o ions than qh ions. d. the solution contains an equal number of h,o ions and oh ions. none of the above e.

•hydration •dissociation •dissolving which one goes to which

Is the flow of energy during vaporizing more like the flow during melting or during freezing