General chemistry

General chemistry

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General chemistry

Heterogeneous mixture

Chemistry; General chemistry

A sample of matter consisting of more than one pure substance and more than one phase . Blood, protoplasm, milk, chocolate, smoke, and chicken soup are examples of heterogeneous mixtures.

A branch of chemistry that studies chemical phenomena from a physical and mathematical perspective. Physical chemistry includes chemical thermodynamics, kinetics, spectroscopy, quantum chemistry, and ...

Yttrium

Chemistry; General chemistry

Element 39, atomic weight 88.90585, a dark grey metal that is used in alloys and nuclear technology for its high neutron transparency. Yttrium compounds are used in the manufacture of colour tv ...

Degenerate

Chemistry; General chemistry

A set of orbitals are said to be degenerate if they all have the same energy. This degeneracy can sometimes be "lifted" by external electric or magnetic fields.

Lysine

Chemistry; General chemistry

A naturally occurring amino acid with an amine group on its side chain.

Spontaneous

Chemistry; General chemistry

A spontaneous process occurs because of internal forces; no external forces are required to keep the process going, although external forces may be required to get the process started. For example, ...