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The time required for half of a reactant to be converted into product(s). The time required for half of a given sample to undergo radioactive decay.

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Contact Process

Industrial process by which sulfur trioxide and sulfuric acid are produced from sulfur dioxide.

Mechanism

The sequence of steps by which reactants are converted into products.

Molecule

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

All Chemicals - Chemical Glossary

The Chemical Glossary currently has 651 chemical entries. You may search the Chemical Glossary by entering the keyword in the search box or by browsing the entire chemical glossary by letter in alphabetical order.

Isomorphous

Refers to crystals having the same atomic arrangement.

Temperature

A measure of the intensity of heat, i.e. the hotness or coldness of a sample. or object.

Condensed Phases

The liquid and solid phases, phases in which particles interact strongly.

Conformations

Structures of a compound that differ by the extent of rotation about a single bond.

Graham's Law

The rates of effusion of gases are inversely proportional to the square roots of their molecular weights or densities.

Ideal Solution

A solution that obeys Raoult's Law exactly.