Variations in the reactive properties of different organic molecules are most closely associated with see concept 4.3 (page 62)

Answer;

-The presence or absence of functional groups since they are the most common participants in chemical reactions.

Variations in the reactive properties of different organic molecules are most closely associated with the presence or absence of functional groups since they are the most common participants in chemical reactions

Explanation;

-Organic compounds are those who chemical formula contains at least one carbon atom, and often contain a hydrogen atom as well. The bonds formed between the carbon and hydrogen atoms to form a hydrocarbon are very strong, and the resulting compound is often essential to living things.

-Organic compounds contain what is called functional groups, a structural unit made up of groups of atoms in a molecule that are bonded to the rest of the molecule by a covalent bond; this bond forms between the functional group and a carbon atom from the main body of the molecule. These functional groups are found in all organic compounds, and help create the chemical properties of the molecule.

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