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Ordinary batteries (voltaic cells) for flashlights. radios, and so on, many are Leclanche cells.

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Insoluble Compound

A very slightly soluble compound.

Hard Water

Water containing Fe3+, Ca2+, and Mg2+ ions, which forms precipates with soap.

Noble Gases (Rare Gases)

Elements of the periodic Group 0, also called rare gases, formerly called inert gases, He,Ne,Ar, Kr, Xe, Rn.

Ionization Isomers

Isomers that result from the interchange of ions inside and outside the coordination sphere.

Copper

Discovered : known to ancient civilisations
Origin : The name is derived from 'Cuprum', the Latin name for Cyprus.

Cis-

The prefix used to indicate that groups are located on the same side of a bon about which rotation is restricted.

Monoprotic Acid

Acid that can form only one hydronium ion per molecule, may be strong or weak. Acid that contains one ionizable hydrogen atom per formula unit.

Heterocyclic Amine

Amine in which the nitrogen is part of a ring.

Single Bond

Covalent bond resulting from the sharing of two electrons (one pair) between two atoms.

Biodegradability

The ability of a substance to be broken down into simpler substances by bacteria.