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Atoms and Molecules — Science STD 9 — Question

CBSE BoardEnglish MediumSTD 9ScienceAtoms and Molecules1 Mark
Question
Work out the formulae for the following compounds:
Sodium oxide.
✓

Answer

Sodium oxide:

$\ \text{Symbols}:\ \ \ \ \ \text{Na}\ \ \ \ \ \ \ \text{O}\\ {\text{Valencies}}:\ +1\ \ \ \ -2$

Thus, the formula of sodium oxide is Na2O

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