When 2 mL of sodium hydroxide solution is added to few pieces of granulated zinc in a test tube and then warmed, the reaction that occurs can be written in the form of a balanced chemical equation as:
Explanation
The correct balanced chemical equation for the reaction is $2 \\mathrm{NaOH}+\\mathrm{Zn} \\rightarrow \\mathrm{Na}_{2} \\mathrm{ZnO}_{2}+\\mathrm{H}_{2} \\mathrm{O}$.
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