Chemical substances can exist in several different physical states or phases (e.g. solids, liquids, gases, or plasma) without changing their chemical composition. Substances transition …

Chemical changes are different from physical changes, which don't result in a change in substances. One example of a physical change is when water freezes into ice. While ice may …

Search chemicals by name, molecular formula, structure, and other identifiers. Find chemical and physical properties, biological activities, safety and toxicity information, patents, literature …

Oct 15, 2023 · 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 …

May 15, 2025 · Learn how to safely handle chemicals, the effects of certain toxins, which substances are controlled or managed, and safer alternatives.

Aug 28, 2025 · Learn about 12 types of chemicals with examples, uses, and safety tips. Explore acids, bases, polymers, pharmaceuticals, and more in everyday life.

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.

Many chemicals have a damaging effect on the environment. The chemical industry produces such things as petrochemicals, drugs, and rubber. Sodium chloride is the chemical name for …

Dec 7, 2019 · A chemical is any substance that is made of matter, like solids, liquids, or gases. Light, heat, and sound are not chemicals since they are not made of matter. Chemicals can be …

Sep 23, 2025 · Chemistry is the study of substances—that is, elements and compounds —while biology is the study of living things. However, these two branches of science meet in the …