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A substance that produces H+(aq) ions in aqueous solution. Strong acids ionize completely or almost completely in dilute aqueous solution. Weak acids ionize only slightly. Chemicals or substances having the property of an acid are said to be acidic.

Acids taste sour, turn litmus red, gives a solution with a pH of less than 7 when dissolved in water and often react with some metals to produce hydrogen gas.

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Oxidizing Agent

The substance that oxidizes another substance and is reduced.

Dissociation

In aqueous solution, the process in which a solid ionic compound separates into its ions.

yttria

Y2O3: A white, water-insoluble powder, Y2O3, used chiefly in incandescent gas and acetylene mantles.

Single Bond

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

Raoult's Law

The vapor pressure of a solvent in an ideal solution decreases as its mole fraction decreases.

Heat of Condensation

The amount of heat that must be removed from one gram of a vapor at it's condensation point to condense the vapour with no change in temperature.

Tyndall Effect

The scattering of light by colloidal particles.

Coefficient of expansion

The ratio of the change in length or volumen of a body to the original lengthor volume for a unit change in temperature.

Hydration Energy

The energy change accompanying the hydration of a mole of gase and ions.

Periodicity

Regular periodic variations of properties of elements with atomic number (and position in the periodic table).