Since 1982 pennies changed from being pure copper to a zinc with a copper coating. On average there is about 3 10 grams of zinc in each penny. If the zinc is exposed and a penny is dropped into 4.00 grams of hydrochloric acid will the acid dissolve all the zinc? what mass of excess reactant remains once the reaction stops? what mass of each product is made. Balance Equation:

Will the acid dissolve all of the zinc?

Mass of Excess:

Mass of Product 1:

Mass of Product 2:​