Cu(OH)2 → CuOHN03 → Cu(N03)2 → Zn(N03)2 → Na2Zn02.

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вопрос

This is a series of chemical reactions involving copper hydroxide (Cu(OH)2), copper nitrate (CuOHNO3), zinc nitrate (Zn(NO3)2), and sodium zincate (Na2ZnO2).

Cu(OH)2 → CuOHNO3: Copper hydroxide reacts with nitric acid (HNO3) to form copper nitrate.

CuOHNO3 → Cu(NO3)2: Copper nitrate undergoes a double displacement reaction to form copper(II) nitrate.

Cu(NO3)2 → Zn(NO3)2: Copper(II) nitrate reacts with zinc metal (Zn) to form zinc nitrate and copper metal (Cu).

Zn(NO3)2 → Na2ZnO2: Zinc nitrate reacts with sodium hydroxide (NaOH) to form sodium zincate.

Overall, the series of reactions results in the transformation of copper hydroxide into sodium zincate via copper nitrate and zinc nitrate intermediates.