A precipitate will form when a freshly prepared aqueous carbonic acid solution is added to an aqueous solution of a. calcium hydroxide. b. sodium chloride. c. potassium carbonate. d. nitrous acid. e. ammonium chloride.

one negative thing it that it can kill water animals. another negative thing is it can cause the destruction of ecosystem. one way water pollution can be reduced is to conserve energy.

c. 4.54 x 10–12 j happens to be correct