The mass you will use in the lab is in excess of the minimum required. What happens to the unused excess Mg(s)?

The mass you will use in the lab is in excess of the minimum required. What happens to the unused excess Mg(s)?A) The excess is removed as Mg(s), after all Cu(s) and Mg(s) do not look the sameB) Additional HCl(aq) is added and this reacts with Mg(s) to form Mg2+(aq)C) The solution is heated to remove the excess Mg(s)The previous question is “If 1.98 g of copper(II) chloride dihydrate is reduced by Mg(s), what is the minimum mass of Mg(s) required for this reduction?”I got .282g Mg