Question

Zh(OH)2----Na2ZhO3 ​

Answer 1

Zn(OH)2 + 2NaOH = Na2ZnO2 + 2H2O

Zn - цинк, пишется не Zh, а Zn

Answer 2

The chemical equation you provided seems to be incomplete or incorrect. There seems to be a typo in the chemical formula as well. "Zh(OH)2" is not a recognized chemical species. However, I can try to provide some information on similar compounds and their reactions.

If you meant "Zn(OH)2" instead of "Zh(OH)2," then the balanced chemical equation for the reaction between Zn(OH)2 and Na2ZnO3 would be:

Zn(OH)2 + 2 Na2ZnO3 → 2 NaOH + Zn(OH)4

In this reaction, Zn(OH)2 reacts with sodium zincate (Na2ZnO3) to form sodium hydroxide (NaOH) and zinc hydroxide (Zn(OH)4).

Again, please ensure that the chemical formulas are correct and double-check the information you provided for accuracy. If you have a different chemical equation or need more specific information, feel free to ask!