Is calcium fluoride more soluble in pure water or in an aqueous
solution of sodium fluoride?

What happens when an acid dissolves?

When hydrochloric acid reacts with potassium hydroxide solution, the following reaction occurs. hcl (aq) + koh (aq) h2o (l) + kcl (aq) the reaction gives off heat energy, so it is an reaction.

Which of the following words describe the reality that the universe looks the same from various perspective