Nutrients are substances that are absorbed by the body through the process of digestion.

carbon dioxide and oxygen

Chemical substances such as nitrogen, oxygen, argon are a mixture that are found in the atmosphere. Carbon dioxide and water are also found depending on the climate and altitude.

This is a chemical reaction. When substances change you can call it chemical.

Chemical substances with their chemical formula uses in home.

Water : H2O

Table salt : NaCl

Coal : C

Edible Soda : NaHCO3

Vinegar : CH3COOH

The list is endless. Around 80,000 chemicals have been introduced into consumer products in the past 50 years, with around ten new ones every week.