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Inorganic Compounds

Lewis acids and bases
ALewis acid is an electron pair acceptor.
ALewis base is an electron pair donor.

Molecules or ions with lone pairs of electrons are capable of behaving as bases, and molecules or
ions which can accept a pair of electrons are capable of behaving as…

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3+
AlCl3(s)
[Al(H
2O) 6]
(aq) + 3Cl-(aq)

Note that there is no precipitate of a metal hydroxide in this reaction; in general, when simply
added to water, metal(III) chlorides do not hydrolyse to form metal(III) hydroxides.

Metal ions exist in aqueous solution as 6-water or hexaaqua ions. The hexaaqua…

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