1)
\(CuSO_4\): muối: đồng (II) sunfat
\(Na_3PO_4\): muối: natri photphat
\(CaO\): oxit bazo: canxi oxit
2)
Phản ứng xảy ra:
\(Zn + 2HCl\xrightarrow{{}}ZnC{l_2} + {H_2}\)
Ta có:
\({n_{Zn}} = \frac{{9,75}}{{65}} = 0,15{\text{ mol = }}{{\text{n}}_{{H_2}}}\)
\( \to {V_{{H_2}}} = 0,15.22,4 = 3,36{\text{ lít}}\)
\({n_{HCl}} = 2{n_{{H_2}}} = 0,15.2 = 0,3{\text{ mol}}\)
\( \to {C_{M{\text{ HCl}}}} = \frac{{0,3}}{{0,3}} = 1M\)