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Different substances that have the same formula.

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Activation Energy

Amount of energy that must be absorbed by reactants in their ground states to reach the transition state so that a reaction can occur. In other words, activation energy is the minimum energy required for a chemical reaction to occur.

Periodic Table of Elements

An arrangement of elements in order of increasing atomic numbers that also emphasizes periodicity.

Equivalence Point

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

Clay

A class of silicate and aluminosilicate minerals with sheet-like structures that have enormous surface areas that can absorb large amounts of water.

Nernst Equation

Corrects standard electrode potentials for nonstandard conditions.

Bomb Calorimeter

A device used to measure the heat transfer between system and surroundings at constant volume.

Atomic Orbital

Region or volume in space in which the probability of finding electrons is highest.

Carcinogen

A substance capable of causing or producing cancer in mammals.

 

Detergent

A soap-like emulsifer that contains a sulfate, SO3 or a phosphate group instead of a carboxylate group.

Bronsted-Lowry Acid

A proton donor.