General chemistry

General chemistry

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General chemistry

Radioactivity

Chemistry; General chemistry

Spontaneous emission of particles or high-energy electromagnetic radiation from the nuclei of unstable atoms. "Radiation" refers to the emissions, and "radioactive source" refers to the source of ...

Ammonium ion

Chemistry; General chemistry

NH4+ is a cation formed by neutralisation of ammonia , which acts as a weak base .

1. The amount of substance that gains or loses one mole of electrons in a redox reaction. 2. The amount of substances that releases or accepts one mole of hydrogen ions in a neutralisation reaction. ...

Nucleic acid

Chemistry; General chemistry

A polymer made of repeating nucleotides . Examples are DNA and RNA .

Triglyceride

Chemistry; General chemistry

A triglyceride is an ester of glycerol and three fatty acids . Most animal fats are composed primarily of triglycerides. In the structures below, the fatty acids attached to the glycerol are ...

Radiant intensity

Chemistry; General chemistry

Energy of radiation striking a unit area per unit time. The SI unit of radiant power is J m-2 s-1.

Ammonia

Chemistry; General chemistry

Pure NH3 is a colourless gas with a sharp, characteristic odor. It is easily liquified by pressure, and is very soluble in water. Ammonia acts as a weak base . Aqueous solutions of ammonia are ...