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General chemistry
Industry: Chemistry
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General chemistry
Ideal gas
Chemistry; General chemistry
A gas whose pressure P, volume V, and temperature T are related by PV = nRT, where n is the number of moles of gas and R is the ideal gas law constant . Ideal gases have molecules with negligible ...
Pseudocore
Chemistry; General chemistry
Electrons in d or f subshells which are outside the noble gas core .
Allotrope
Chemistry; General chemistry
Some elements occur in several distinct forms called allotropes. Allotropes have different chemical and physical properties. For example, graphite and diamond are allotropes of carbon.
Enthalpy of fusion
Chemistry; General chemistry
The change in enthalpy when one mole of solid melts to form one mole of liquid. Enthalpies of fusion are always positive because melting involves overcoming some of the intermolecular attractions in ...
Nonelectrolyte
Chemistry; General chemistry
A nonelectrolyte is a substance which does not ionise in solution.
Carbonate hardness
Chemistry; General chemistry
Water hardness due to the presence of calcium and magnesium carbonates and bicarbonates. The "noncarbonate hardness" is due mostly to calcium and magnesium sulfates, chlorides, and nitrates.
