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A substance that speeds up a chemical reaction without being consumed itself in the reaction.
A substance that alters (usually increases) the rate at which a reaction occurs.

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Vapor

A gas formed by boiling or evaporating a liquid.

xanthate

A salt or ester of xanthic acid. Many xanthates have a yellow color. Xanthates are used as flotation agents in mineral processing.

Phenol

Hydrocarbon derivative containing an [OH] group bound to an aromatic raing.

 

Haber Process

A process for the catalyzed industrial production of ammonia from N2 and H2 at high temperature and pressure.

Chemistry of the sky

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

Lewis Acid

Any species that can accept a share in an electron pair.

Fuel Cells

Voltaic cells in which the reactants (usually gases) are supplied continuously.
A voltaic cell that converts the chemical energy of a fuel and an oxidizing agent directly into electriacl energy on a continuous basis.

Creating Malachite egg

One of the most interesting and obvious chemical experiments is the experiment on the interaction of copper sulfate and calcium carbonate. The latter is contained in the shell of a simple egg, but copper sulphate should be searched in a chemical reagent store. This experience is simple, but effective and visual, and as a result we will get something beautiful.

Rate of Reaction

Change in the concentration of a reactant or product per unit time.

Suspension

A heterogeneous mixture in which solute-like particles settle out of solvent-like phase some time after their introduction.