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The water molecule is represented as:

AH2O
BHO2
CH3O
DHO3
Answer & Solution
Correct answer: A. H2O
1. Oxygen needs two electrons and hydrogen needs one. 2. So two hydrogen atoms each share an electron with one oxygen. 3. The molecule is written H2O. 4. So the answer is H2O. _Source: syllabus Science, Ch 9 'Atomic Foundations of Matter'_
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