1)
a) không phản ứng
b) \(F{e_2}{O_3} + 3{H_2}\xrightarrow{{}}2Fe + 3{H_2}O\)
c) \(HgO + {H_2}\xrightarrow{{}}Hg + {H_2}O\)
d) \(PbO + {H_2}\xrightarrow{{}}Pb + {H_2}O\)
e) \(FeO + {H_2}\xrightarrow{{}}Fe + {H_2}O\)
2)
\(CuO + {H_2}\xrightarrow{{}}Cu + {H_2}O\)
\({n_{CuO}} = \frac{{48}}{{64 + 16}} = 0,6{\text{ mol}} \to {{\text{n}}_{Cu}} = {n_{CuO}} = 0,6{\text{ mol}} \to {{\text{m}}_{Cu}} = 0,6.64 = 38,4{\text{ gam}}\)
\({n_{{H_2}}} = {n_{CuO}} = 0,6{\text{ mol}} \to {{\text{V}}_{{H_2}}} = 0,6.22,4 = 13,44{\text{ lít}}\)
