- Chemical substance - Wikipedia
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 chemical compounds If two or more chemical substances can be combined without reacting, they may form a chemical mixture [3]
- What Is a Chemical? Definition and Examples - Science Notes and Projects
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
- PubChem
Search and explore chemical information in the world's largest free chemistry database 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
- Safe Disposal - Household Hazardous Waste | Salt Lake County
If you have lab grade chemicals or items such as organic peroxide, mercury, picric acid, hydrofluoric acid, contact the Household Hazardous Waste Program in advance at 385-468-3862 Gather used alkaline batteries in a cardboard box or plastic container to prevent sparks
- Chemical compound | Definition, Examples, Types | Britannica
chemical compound, any substance composed of identical molecules consisting of atoms of two or more chemical elements water molecule A water molecule is made up of two hydrogen atoms and one oxygen atom A single oxygen atom contains six electrons in its outer shell, which can hold a total of eight electrons
- What Is a Chemical and What Isnt a Chemical? - ThoughtCo
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
- Household Hazardous Waste Collection | Utah County Health Department
Thank you to our wonderful county citizens who dispose of hazardous materials responsibly! REMEMBER: You can ALWAYS dispose of household hazardous materials at either county waste station! Many items are FREE disposal, such as paint, oil, gasoline, pesticides, and cleaners Electronics, trash and some other items have a fee
- What is a Chemical - NRC
The Nuclear Regulatory Commission's Science 101: What is a Chemical? 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 Other chemicals are manufactured, such as chlorine (used for bleaching fabrics or in swimming pools)
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