Write the reaction equation: Cu-CuCL2-Cu (OH) 2-CuO, Mg-MgO-MgCL2-Mg (OH) 2 CuSO4-Cu (OH) 2-CuO-CuCl2

А)

1) Cu + Cl2  → CuCl2;

2) Ca(OH)2 + CuCl2 → Cu(OH)2↓ + CaCl2;

3) Cu(OH)2↓ → CuO + H2O.

В)

1) BeO + Mg → Be + MgO;

2) MgO + 2HCl → MgCl2 + H2O;

3) MgCl2 + 2NaOH → Mg(OH)2↓ + 2NaCl.

С)

1) CuSO4 + 2NaOH → Cu(OH)2↓ + Na2SO4;

2) Cu(OH)2↓ → CuO + H2O;

3) CuO + 2HCl → CuCl2 + H2O.



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