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General chemistry
Industry: Chemistry
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General chemistry
hydrochloric acid
Chemistry; General chemistry
A very strong, poisonous acid with a sharp odor. It is used to clean metals.
Lavoisier
Chemistry; General chemistry
French scientist who wrote the first chemistry text-book in 1789.He showed that air is a mixture of gases.
mass number
Chemistry; General chemistry
The total number of protons and neutrons in the nucleus of an atom. Nitrogen has a mass number of 14(7 neutrons and 7 protons).
insoluble
Chemistry; General chemistry
Not able to be dissolved in a particular substance. Many rocks and metals are insoluble in water.
Mendeleev
Chemistry; General chemistry
Born 1834; died 1907. Russian scientist who invented the Periodic Table of the elements in 1869.
noble gas
Chemistry; General chemistry
One of the six gases that almost never react with other chemical elements. They appear in the column of the Periodic Table that is farthest to the right.
Pauling
Chemistry; General chemistry
Born 1901; died 1994. American scientist who studied the structure of molecules and chemical compounds.
