CuO+___=___+H2O
问题描述：
CuO+___=___+H2O
___+NaOH=Na2CO3+____
___+2HCL=____+___+CO2↑
___+Zn=Zn(NO3)2+____
___+H2SO4=MgSO4+___+___↑
答
CuO+H2 ==Δ== Cu+H2O
CO2+2NaOHMgSO4+H2O+CO2↑
答案不唯一,这是最常见的(尤其在初中).