When metals react with acids, a salt of the metal and hydrogen gas are formed. We can investigate the reactivity of different metals by placing samples in acid and comparing the results.

Small pieces of solid calcium metal are placed in two different concentrations of two different acids (hydrochloric acid and nitric acid). The calcium reacts most vigorously with the hydrochloric acid ...

MOST text-books of organic chemistry contain the statement that formic acid and formates owe ... ammoniacal silver nitrate to the metal; while this reaction certainly is given by aldehydes ...

Cyanide salts and solutions are extremely poisonous. Reaction with acid liberates hydrogen cyanide gas, one of the most toxic and rapidly acting poisons. Solutions must be kept basic (pH>8). Gloves ...

If there's a reaction, we'll pull it out ... That way, there's no further rusting from the acid because the acid does attack the metal slightly. Then it'll be pressure washed until all of the ...