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3 votes
H2O, or water, contains one _____________. A. oxygen atom B. element C. hydrogen atom D. oxygen molecule

2 Answers

4 votes
A.Oxygen since H2O is a water molecule it made up of two hydrogen atoms and one oxygen atom.
answered
User Ram Patra
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5 votes
The answer is 1 oxygen
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User Eocron
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8.1k points

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