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Chemical Reactions and Equations — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceChemical Reactions and Equations1 Mark
Question
Balance the following equations:$\text{Na}\ +\text{O}_2\xrightarrow{\ \ \ \ \ \ \ \ \ \ \ }\text{Na}_2\text{O}$
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Answer

$4\text{Na}\ +\text{O}_2\xrightarrow{\ \ \ \ \ \ \ \ \ \ \ }2\text{Na}_2\text{O}$

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