Решите цепочку: 1. CH4-C2H2-C2H5OH-CH3COOH 2.CU-CUO-CUSO4-CU(OH)2-Cu
2Cu+O2=2CuO CuO+H2SO4=CuSO4+H2O CuSO4+Ba(OH)2=Cu(OH)2+BaSO4 Cu(OH)2=CuO+H2O CuO+H2=Cu+H2O