- Chemistry | Definition, Topics, Types, History, Facts | Britannica
The identification of pure substances and the analysis of chemical mixtures enable all other chemical disciplines to flourish The importance of analytical chemistry has never been greater than it is today
- Chemical reaction | Definition, Equations, Examples, Types - Britannica
A chemical reaction is a process in which one or more substances, the reactants, are converted to one or more different substances, the products Substances are either chemical elements or compounds
- Chemical compound | Definition, Examples, Types | Britannica
All the matter in the universe is composed of the atoms of more than 100 different chemical elements, which are found both in pure form and combined in chemical compounds
- Chemical Definition Meaning | Britannica Dictionary
CHEMICAL meaning: 1 : of or relating to chemistry; 2 : working by means of chemicals
- Oxalic acid | Formula, Uses, Facts | Britannica
The chief chemical characteristic of the carboxylic acids is their acidity They are generally more acidic than other organic compounds containing hydroxyl groups but are generally weaker than the familiar mineral acids (e g , hydrochloric acid, HCl, sulfuric acid, H 2 SO 4, etc )
- The Horrifying History of Gas Warfare | Britannica
But Haber was willing to pervert this chemical genius to help Germany win the war And he set out to craft deadlier chemical weapons, leading a group of scientists the German military ghoulishly called "the disinfection unit "
- Bisphenol A (BPA) | Description, Biological Effects, Environmental . . .
Much speculation centres around whether BPA is a true endocrine disruptor chemical (EDC) in humans (broadly defined, an EDC is an exogenous substance, one that comes from outside the body, that interferes with natural hormones in the body)
- Chemical element | Definition, Origins, Distribution, Facts - Britannica
A chemical element is any substance that cannot be decomposed into simpler substances by ordinary chemical processes Elements are the fundamental materials of which all matter is composed Learn more about the origins, distribution, and characteristics of chemical elements in this article
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