\(600l\rightarrow600ml\\ n_{Zn}=x;n_{CuO}=y\\ PTHH:Zn+H_2SO_4\rightarrow ZnSO_4+H_2\\ PTHH:CuO+H_2SO_4\rightarrow CuSO_4+H_2O\\ m_{ddH_2SO_4}=1,1.600=660\left(ml\right)=0,66\left(l\right)\\ hpt:\left\{{}\begin{matrix}65x+80y=21\\x+y=0,66.0,5\end{matrix}\right.\Leftrightarrow\left\{{}\begin{matrix}x=0,36\\y=-0,03\end{matrix}\right.\left(KTM\right)\)
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