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K12 What is the smallest particle representing oxygen

A. diatomic oxygen
B. a proton
C. a compound
D. an atom

THIS IS THE BEST ANSWER ๐Ÿ‘‡

Molecules

Explanation:

Molecules are the smallest particle that essentially represents hydrogen peroxide. Hydrogen peroxide is one of the inorganic peroxide types represented by the single oxygen-oxygen bond.

The smallest particle representing the chemical compound is called a molecule and in the case of hydrogen peroxide, the H2O2 is the molecules. At room temperature, hydrogen peroxide is a colorless form of liquid.

The molecules are essentially composed of the various chemical compounds that are identical in nature.