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The amount of heat required to vaporize one gram of a liquid at its boiling point with no change in temperature. Usually expressed in J/g. The molar heat of vaporization is the amount of heat required to vaporize one mole of liquid at its boiling point with no change in temperature and usually expressed ion kJ/mol.

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Chemical Kinetics

The study of rates and mechanisms of chemical reactions and of the factors on which they depend.

Resonance

The concept in which two or more equivalent dot formulas for the same arrangement of atoms (resonance structures) are necessary to describe the bonding in a molecule or ion.

Kinetic Energy

Energy that matter processes by virtue of its motion.

Oxidation-reduction Reactions

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

Electrode Potentials

Potentials, E, of half-reactions as reductions versus the standard hydrogen electrode.

Three ways to make patina at home

The first way is ammonia patination. To do this, take a plastic container. Put a couple of paper or ordinary towels at the bottom. Moisten them with ammonia. Then sprinkle with large table salt.

Molecule

The smallest particle of an element or compound capable of a stable, independent existence.

Vapor

A gas formed by boiling or evaporating a liquid.

Condensed States

The solid and liquid states.

Polymerization

The combination of many small molecules to form large molecules.