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Theory that accounts for the bonding and properties of metallic solids.

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Temperature

A measure of the intensity of heat, i.e. the hotness or coldness of a sample. or object.

Period

The elements in a horizontal row of the periodic table.

Functional Group

A group of atoms that represents a potential reaction site in an organic compound.

Isomers

Different substances that have the same formula.

Equivalence Point

The point at which chemically equivalent amounts of reactants have reacted.

Coke

An impure form of carbon obtained by destructive distillation of coal or petroleum.

Solvation

The process by which solvent molecules surround and interact with solute ions or molecules.

Dispersed Phase

The solute-like species in a colloid.

Excited State

Any state other than the ground state of an atom or molecule.

How to keep flowers in a vase for long time

The best gift for a woman, as you know, is a beautiful bouquet of flowers. But the cut flowers at home quite quickly wither. But your favorite roses or tulips can keep their freshness if you use our advice. Chemistry and various chemical elements will help us in this difficult matter!