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This glossary of chemistry terms is a list of terms and definitions relevant to chemistry, including chemical laws, diagrams and formulae, laboratory tools, glassware, and equipment. Chemistry is a physical science concerned with the composition, structure, and properties of matter , as well as the changes it undergoes during chemical reactions ...
A chemical composition specifies the identity, arrangement, and ratio of the chemical elements making up a compound by way of chemical and atomic bonds.. Chemical formulas can be used to describe the relative amounts of elements present in a compound.
Nuclear chemistry is a sub-discipline of chemistry that involves the chemical reactions of unstable and radioactive elements where both electronic and nuclear changes can occur. The substance (or substances) initially involved in a chemical reaction are called reactants or reagents.
The term "fine chemicals" was in use as early as 1908. [1] The emergence of the fine chemical industry as a distinct entity dates to the late 1970s, when the overwhelming success of the histamine H 2 receptor antagonists Tagamet (cimetidine) and Zantac (ranitidine hydrochloride) created a strong demand for advanced organic chemicals used in their manufacture.
1. Related to group or solo performances. 2. A small or unspecified number of items. 3. Phrases you might see on the cover of something. 4. The words in this category are often used in repetitive ...
A colloid is a heterogeneous mixture where the dispersed particles have at least in one direction a dimension roughly between 1 nm and 1 μm or that in a system discontinuities are found at distances of that order. [8] A suspension is a heterogeneous dispersion of larger particles in a medium. Unlike solutions and colloids, if left undisturbed ...
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Christmas pudding, also referred to as figgy pudding or plum pudding, is another longtime holiday tradition in the UK.. It's a boiled cake made with dried fruit and soaked in aged alcohol, and it ...