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Elements, Compounds, Symbols And Formulae — CHEMISTRY STD 6 — Question

ICSE BoardEnglish MediumSTD 6CHEMISTRYElements, Compounds, Symbols And Formulae1 Mark
Question
What is meant by $H _2 O$ and $3 H _2 O$
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Answer

$H _2 O$ represents one molecule of water. $3 H _2 O$ represents 3 molecules of water.

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