- 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
- How Does Metal Rust? | Science, Process, Facts | Britannica
Rust is the result of a chemical reaction between metal, typically iron, and oxygen in the presence of moisture This process, known as oxidation, transforms the metal into a new compound, iron oxide, which we commonly recognize as rust
- 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 "
- Chemical Definition Meaning | Britannica Dictionary
CHEMICAL meaning: 1 : of or relating to chemistry; 2 : working by means of chemicals
- Chemical Products Portal | Britannica
Although nature provides us with a staggering amount of natural resources, humankind has also made use of a great variety of man-made compounds and substances The chemical industry converts raw materials
- Bisphenol A (BPA) | Description, Biological Effects, Environmental . . .
BPA was first synthesized in 1891, by Russian chemist Aleksandr P Dianin, who combined phenol with acetone in the presence of an acid catalyst to produce the chemical
|