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Compounds containing predominantly covalent bonds.

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Distilland

The material in a distillation apparatus that is to be distilled.

Method of Initial Rates

Method of determining the rate-law expression by carrying out a reaction with different initial concentrations and analyzing the resultant changes in initial rates.

Percent Composition

The mass percent of each element in a compound.

Alloying

Mixing of metal with other substances (usually other metals) to modify its properties.

Greenhouse Effect

Trapping of heat at the surface of the earth by carbon dioxide and water vapour in the atmosphere.

Distillate

The material in a distillation apparatus that is collected in the receiver.

 

Nuclear Fission

The process in which a heavy nucleus splits into nuclei of intermediate masses and one or more protons are emitted.

Excited State

Any state other than the ground state of an atom or molecule.

Chemistry of the sky

Chemistry can teach us about the composition of celestial bodies and determine their age.

Unsaturated Hydrocarbons

Hydrocarbons that contain double or triple carbon-carbon bonds.