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State what happens when zinc granules are heated with sodium hydroxide. Write balanced equation andthe name of main product formed.

Question

State what happens when zinc granules are heated with sodium hydroxide. Write balanced equation and the name of main product formed.

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Solution

When zinc granules are heated with sodium hydroxide, a reaction occurs that produces sodium zincate and hydrogen gas. Zinc reacts with sodium hydroxide in the presence of water, forming the sodium salt of zinc and releasing hydrogen gas as a byproduct.

Balanced Equation

The balanced chemical equation for this reaction can be represented as follows:

Zn (s)+2NaOH (aq)Na2ZnO2(aq)+H2(g) \text{Zn (s)} + 2 \text{NaOH (aq)} \rightarrow \text{Na}_2\text{ZnO}_2 (aq) + \text{H}_2 (g)

Main Product

The main product formed in this reaction is sodium zincate (Na2ZnO2)(\text{Na}_2\text{ZnO}_2).

Summary

In summary, when zinc granules are heated with sodium hydroxide, sodium zincate is formed along with hydrogen gas, with the balanced equation provided above.

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