Question

Which is the smallest particle into which water (H2O) in a glass can be broken down and still remain water? A. a water molecule B. only an oxygen atom C. only a hydrogen atom D. a hydrogen peroxide molecule

Answer 1

A water molecule hydrogen peroxide molecule

Answer 2

Answer:-

A. A water molecule

Explanation:-

A molecule is the smallest particle of a compound that retains all it's chemical properties.

Here H2O is a compound. So the smallest particle that will retain all the chemical properties and still remain water is water molecule.

Atoms Hydrogen and Oxygen both have different chemical properties from water H2O and are thus different.

Hydrogen peroxide is different molecule from water. So it is also not water.