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Any of a group of dyes having a molecular structure related to that of xanthene in which the aromatic (C6H4) groups are the chromophore.

 

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Enthalpy

The heat content of a specific amount of substance, defined as E= PV.

Free Energy Change

The indicator of spontaneity of a process at constnt T and P. If delta-G is negative, the process is spontaneous.

Saccharide

An organic compound containing a sugar or sugars.

Nuclear Fission

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

Endothermicity

The absorption of heat by a system as the process occurs.

Galvanizing

Placing a thin layer of zinc on a ferrous material to protect the underlying surface from corrosion.

 

Clay

A class of silicate and aluminosilicate minerals with sheet-like structures that have enormous surface areas that can absorb large amounts of water.

Molecular Weight

The mass of one molecule of a nonionic substance in atomic mass units.

Nodal Plane

A region in which the probability of finding an electron is zero.

 

Density

Density is the ratio b/w Mass and Volume: D=M/V