a) Fe +2HCl---> FeCl2 =H2
Cu ko pư nha
Ta có
n\(_{H2}=\frac{2,24}{22,4}=0,1\left(mol\right)\)
Theo pthh
n\(_{Fe}=n_{H2}=0,1\left(mol\right)\)
m\(_{Fe}=0,1.56=5,6\left(g\right)\)
m\(_{Cu}=10-5,6=4,4\left(g\right)\)
b) %m\(_{Fe}=\frac{5,6}{10}.100\%=56\%\)
%m\(_{Cu}=100\%-56\%=44\%\)
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