For everyday science, what is the chemical formula of water?
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✅ Correct answer: A. H2O
a: H2O | b: CO2 | c: NaCl | d: O2
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Tap an option to check your answer.
✅ Correct answer: A. H2O
a: H2O | b: CO2 | c: NaCl | d: O2
10 random questions, instant feedback, earn XP.