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Reactions in which oxidation and reduction occur, also called redox reactions.

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Percent by Mass

100% times the actual yield divided by theoretical yield.

Semipermable Membrane

A thin partition between two solutions through which certain molecules can pass but others cannot.

Organic Chemistry

The chemistry of substances that contain carbon-hydrogen bonds.

Solubility Product Principle

The solubility product constant expression for a slightly soluble compound is the product of the concentrations of the constituent ions, each raised to the power that corresponds to the number of ions in one formula unit.

Functional Group

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

Polarization

The buildup of a product of oxidation or a reduction of an electrode, preventing further reaction.

Acidic Salt

A salt containing an ionizable hydrogen atom. Acidic salt does not necessarily produce acidic solutions.

Cathodic Protection

Protection of a metal (making ir a cathode) against corrosion by attaching it to a sacrifical anode of a more easily oxidized metal.

Covalent Bond

Chemical bond formed by the sharing of one or more electron pairs between two atoms.

Sulfuric Acid

H2SO4: colorless, oily liquid, boiling point 330C. A 96 percent solution is used in the laboratory.

Fire Hazard: This is a very powerful, acidic oxidizer which can Ignite or even explode on contact with many materials, i.e. acetic acid ,acetone+ HNOs, alcohols, + H202, NH4OH, HCL, NaOH, and others.

Sulfuric acid has a wide range of uses and plays a part in the production of nearly all manufactured goods.