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General chemistry
Industry: Chemistry
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General chemistry
quantitative structure-activity relationship
Chemistry; General chemistry
A mathematical connection between chemical structure and biological activity, established by statistical analysis or pattern recognition techniques.
activation energy
Chemistry; General chemistry
The minimum energy required to convert reactants into products; the difference between the energies of the activated complex and the reactants.
drug
Chemistry; General chemistry
A biologically active compound or mixture used to cure, prevent, or detect disease, to control biological processes, or to alter mental state.
molar volume
Chemistry; General chemistry
The volume occupied by one mole of a material. For example, the molar volume of an ideal gas at STP is 22.4 L/mol.
superconductivity
Chemistry; General chemistry
The ability of certain materials to carry an electric current with zero electrical resistance .
cathode ray
Chemistry; General chemistry
A negatively charged beam that emanates from the cathode of a discharge tube. Cathode rays are streams of electrons.
independent variable
Chemistry; General chemistry
An independent variable that can be set to a known value in an experiment. Several independent variables may be controlled in an experiment. For example, in an experiment where the vapor pressure ...
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