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What Is a Chemical? Definition and Examples - Science Notes and Projects
Chemicals come in various forms depending on their composition, structure, and how they interact with other substances. Understanding the main types of chemicals helps classify the substances we encounter in the lab, in industry, and in everyday life.
PubChem
Search chemicals by name, molecular formula, structure, and other identifiers. Find chemical and physical properties, biological activities, safety and toxicity information, patents, literature citations and more.
12 Types of Chemicals Explained | Uses, Examples & Safety Tips
Learn about 12 types of chemicals with examples, uses, and safety tips. Explore acids, bases, polymers, pharmaceuticals, and more in everyday life.
Chemicals, Pesticides and Toxics Topics | US EPA
Learn how to safely handle chemicals, the effects of certain toxins, which substances are controlled or managed, and safer alternatives.
CHEMICAL Definition & Meaning - Merriam-Webster
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.
Substance (chemistry) - Wikipedia
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 between these phases of matter in response to changes in temperature or pressure.
What Is and Is Not a Chemical? - ThoughtCo
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 both natural, like oxygen, or artificial, like stainless steel.
What is a Chemical ? | Nuclear Regulatory Commission - NRC
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 have different physical properties, it is still just water. Another example is when you dissolve salt into a cup of water.
List of Chemical Compounds - 33Science
Everyday life and scientific work both rely on a surprising variety of chemicals — in kitchens, gardens, factories and classrooms. A compact, well-organized list makes it easier to spot familiar substances, compare properties, and understand common uses without wading through dense technical texts.
Lawsuit Against Chobani Claims Yogurt Includes Toxic Chemicals - Delish
A class action lawsuit filed against Chobani claims that its yogurt contains phthalates, toxic chemicals known to cause adverse health effects.
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