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Atoms and Molecules — Science STD 9 — Question

CBSE BoardEnglish MediumSTD 9ScienceAtoms and Molecules1 Mark
Question
Work out the formula for magnesium hydrogencarbonate.
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Answer

$\ \text{Symbols}:\ \ \ \ \ \text{Mg}\ \ \ \ \ \ \text{HCO}_3\\ {\text{Valencies}}:\ \ +2\ \ \ \ \ \ \ -1$
Thus, the resulting compound is Mg(HCO3)2

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