A chemical substance is a unique form of matter with constant chemical composition and characteristic properties. [1] [2] Chemical substances may take the form of a single element or …

Oct 15, 2023 · A chemical is a substance with a specific composition. It is an element, an alloy, or a compound made up of two or more elements combined in a fixed ratio. For instance, water …

PubChem is the world's largest collection of freely accessible chemical information. Search chemicals by name, molecular formula, structure, and other identifiers. Find chemical and …

The meaning of CHEMICAL is of, relating to, used in, or produced by chemistry or the phenomena of chemistry. How to use chemical in a sentence.

Dec 7, 2019 · Are you wondering what makes something a chemical? This frequently asked chemistry question with a very specific answer.

CHEMICAL definition: 1. any basic substance that is used in or produced by a reaction involving changes to atoms or…. Learn more.

Relating to or produced by means of chemistry: a chemical discovery; a chemical change. Noun A substance obtained by or used in a chemical process; a chemical compound.

CHEMICAL meaning: 1 : of or relating to chemistry; 2 : working by means of chemicals

The chemical industry has made moderate progress in 2024, increasing year-over-year production above 2023 levels, and it is estimated that production levels will continue to rise as …

Mar 19, 2020 · A chemical is any substance that has a defined composition. In other words, a chemical is always made up of the same "stuff." Some chemicals occur in nature, such as water.