What is the chemical description of water as given in the material?

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Multiple Choice

What is the chemical description of water as given in the material?

Explanation:
Chemical formulas show how many atoms of each element are in a molecule. Water has two hydrogen atoms and one oxygen atom, so its formula is H2O. In the material, this is written as H20, where the 2 indicates two hydrogens and one oxygen is implied in the standard formula. The other choices describe other substances: H2O2 is hydrogen peroxide (two hydrogens and two oxygens), HO2 is not water, and H3O is the hydronium ion. So the H20 notation matches the material’s description of water.

Chemical formulas show how many atoms of each element are in a molecule. Water has two hydrogen atoms and one oxygen atom, so its formula is H2O. In the material, this is written as H20, where the 2 indicates two hydrogens and one oxygen is implied in the standard formula. The other choices describe other substances: H2O2 is hydrogen peroxide (two hydrogens and two oxygens), HO2 is not water, and H3O is the hydronium ion. So the H20 notation matches the material’s description of water.

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