Chemical: meaning, definitions and examples

This term is broad and can refer to any compound or substance that results from a reaction involving atomic or molecular changes. It's often used in contexts related to chemistry, industry, or material science.

• The plant releases several harmful chemicals into the air
• The scientist is studying the chemical properties of the new substance

This term is general and can refer to any material with a definite chemical composition. It's suitable for everyday use as well as scientific contexts.

• Please avoid contact with this toxic substance
• The researchers discovered a new substance with unique properties

Used to describe a substance formed when two or more chemical elements are chemically bonded together. It is often used in a scientific or technical context.

• Water is a compound made from hydrogen and oxygen
• The lab is synthesizing new organic compounds for cancer research

Refers to a substance that cannot be broken down into simpler substances by chemical means. It's mostly used in basic scientific discussions, particularly in chemistry.

• Gold is a precious element
• The periodic table organizes all known elements