Chemicals - Diverse Substances with Unique Properties

Chemicals are substances with distinct molecular composition. Understanding chemicals is important for various industries and safety purposes.

Chemicals FAQ

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What is an example of a chemical?

Because this definition of a chemical is so broad, most people consider a pure substance (element or compound) to be a chemical, particularly if it is prepared in a laboratory. Examples of things which are chemicals or consist of them include water, pencil, air, carpet, light bulb, copper, bubbles, baking soda, and salt.

What is a chemical substance?

Broader definitions of chemicals or chemical substances can be found, for example: "the term 'chemical substance' means any organic or inorganic substance of a particular molecular identity, including – (i) any combination of such substances occurring in whole or in part as a result of a chemical reaction or occurring in nature".

What is a chemical in chemistry?

In everyday usage, a “chemical” often refers to an undesirable additive or contaminant. For example, pesticides in water or artificial colorings in food are “chemicals.” But, chemistry sees chemicals somewhat differently. A chemical is a substance with a specific composition.

What is a chemical compound?

A chemical compound is a chemical substance that is composed of a particular set of atoms or ions. Two or more elements combined into one substance through a chemical reaction form a chemical compound. All compounds are substances, but not all substances are compounds.