Respuesta :

Answer:

x = 10.2g

Explanation:

CuO + H2 --> H2O + Cu

12.640 g CuO/ 79.55g =0.16 mol

0.16 mol CuO x 1 mol of Cu = 0.16 mol Cu

0.16 mol Cu x 63.546 g = 10.2g of Cu