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What is the chemical composition of water?
O 1 hydrogen and 2 oxygen molecules
O 2 hydrogen and 3 oxygen molecules
O 2 hydrogen and 1 oxygen molecules
O 3 hydrogen and 2 oxygen molecules

Respuesta :

2 hydrogen and 1 oxygen molecules; H2O is water, hydrogen (2) oxygen (1)
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Answer:

H20 the 3rd one.

Explanation:

2 Hydrogen molecules and 1 Oxygen molecule.