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What does the small number 2 show in this chemical formula H2O ?

What does the small number 2 show in this chemical formula H2O ?
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What does the small number 2 show in this chemical formula H2O ?

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User Superwayne
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Answer: two atoms of hydrogen in a molecule of water.

Step-by-step explanation:

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User Evenro
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The 2 represents that there are 2 hydrogen atoms in the chemical formula H2O.
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User DiRiNoiD
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