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A substance at temperature above its critical temperature.

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    Most of the microscopes used today are compound. A compound microscope features two or more lenses. A hollow cylinder called the tube connects the two lenses. The top lens, the one people look through, is called the eyepiece. The bottom lens is known as the objective lens. Below the two lenses is...

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Fatty Acids

An aliphatic acid, many can obtained from animal fats.

Law of Definite Proportions (Law of Constant Composition)

The law stating that a pure substance will always have the same percent by weight. Different samples of a pure compound always contain the same elements in the same proportions by mass.

Inhibitory Catalyst

An inhibitor, a catalyst that decreases the rate of reaction.

Chemical Equilibrium

A state of dynamic balance in which the rates of forward and reverse reactions are equal, there is no net change in concentrations of reactants or products while a system is at equilibrium.

Viscosity

Resistance offered by the molecules of a liquid to flow is termed as viscosity.

Hydration

Reaction of a substance with water.

Band

A series of very closely spaced, nearly continuous molecular orbitals that belong to the crystal as a whole.

Hybridization

Mixing a set of atomic orbitals to form a new set of atomic orbitals with the same total electron capacity and with properties and energies intermediate between those of the original unhybridized orbitals.

First Law of Thermodynamics

The total amount of energy in the universe is constant (also known as the Law of Conservation of Energy) energy is neither created nor destroyed in ordinary chemical reactions and physical changes.

Insulator

Poor electric and heat conductor.