配平下列化学方程式(1)__________Cu+__________O2__________CuO(2)__________C3H8+__________O2__________CO2+__________H2O(3)__________FeS2+__________O2__________Fe2O3+__________SO2(4)__________Cu2(OH)2CO3__________CuO+__________H2O+__________CO2
试题篮