\(MgO+H_2\rightarrow Mg+H_2O\)
\(CuO+H_2\rightarrow Cu+H_2O\)
\(FeO+H_2\rightarrow Fe+H_2O\)
\(n_{Mg}=n_{MgO}=0,1\left(mol\right)\)
\(\Rightarrow m_{Mg}=0,1.24=2,4\left(g\right)\)
\(m_{Cu}=m_{CuO}=0,3\left(mol\right)\)
\(\Rightarrow m_{CuO}=0,3.64=19,2\left(g\right)\)
\(n_{Fe}=n_{FeO}=0,4\)
\(\Rightarrow m_{Fe}=0,4.56=22,4\left(g\right)\)
CaO và Na2O không phản ứng
\(\Rightarrow m_{CaO}=0,2.56=11,2\left(g\right)\)
\(\Rightarrow m_{Na2O}=0,25.62=15,5\left(g\right)\)