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The amount of heat absorbed in the formation of solution that contains one mole of solute, the value is positive if heat is absorbed (endothermic) and negative if heat is released (exothermic).

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Reaction Stoichiometry

Description of the quantitative relationships among substances as they participate in chemical reactions.

Mass

A measure of the amount of matter in an object. Mass is usually measured in grams or kilograms.

Polymerization

The combination of many small molecules to form large molecules.

Substance

Any kind of matter all specimens of which have the same chemical composition and physical properties.

 

Nucleons

Particles comprising the nucleus, protons and neutrons.

Homonuclear

Consisting of only one element.

Equation of State

An equation that describes the behavior of matter in a given state, the van der Waals equation describes the behavior of the gaseous state.

xanthate

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

Boron Hydrides

Binary compounds of boron and hydrogen.

Octet Rule

Many representative elements attain at least a share of eight electrons in their valence shells when they form molecular or ionic compounds, there are some limitations.