October 2021 1 19 Report


a) Cuso Cu(OH), CuO → Cu;
6) Fe FeCl, Fe(NO), → Fe(OH), → FeO -
) Fe - FeCl, → Fe(OH), → Feo, → Fe → FeSO
D) P PO → H,PO. → Ca,(PO),
) SSO, SO, → H.SO. → Na so,
e) C → CO → CaCO > CaO > Ca(OH)2 →
x) CaCO – Ca(HCO) > CaCO > CO + CaCO.
3) Na → NaH → NaOH → NaNO,
) (CuOH),CO, → CuO → Cuso. → Cu(OH), → Cuo → Cu.
Ca(HCO),
2. Запишите уравнения реакций, необходимых для осуществления следующих предложений ​
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