lam mass. In this case, ther 6.b Three samples of CuO made by different methods were reduced to Cu with dry H,gas. The following results were obtained. A 3.18g of CuO yielded 2.54g of Cu B 4.77g of CuO yielded 3.81g of Cu C 2.14g of CuO yielded 1.71g of Cu Use these results to illustrate the chemical law. 0 O S la fo​