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General chemistry
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General chemistry
enthalpy of hydration
Chemistry; General chemistry
The change in enthalpy for the process A(g) -> A(aq) where the concentration of A in the aqueous solution approaches zero. Enthalpies of hydration for ions are always negative because strong ...
nonmetal
Chemistry; General chemistry
A nonmetal is a substance that conducts heat and electricity poorly, is brittle or waxy or gaseous, and cannot be hammered into sheets or drawn into wire. Nonmetals gain electrons easily to form ...
thixotropic fluid
Chemistry; General chemistry
A liquid that becomes less viscous when stirred. Paint and printing inks are thixotropic fluids; they are formulated so that they flow more freely when brushed or rolled.
congener
Chemistry; General chemistry
1. Elements belonging to the same group on the periodic table. For example, sodium and potassium are congeners. 2. Compounds produced by identical synthesis reactions and procedures.
isotope
Chemistry; General chemistry
Atoms or ions of an element with different numbers of neutrons in their atomic nucleus . Isotopes have the same atomic number but different mass number . Isotopes have very similar chemical ...
second law
Chemistry; General chemistry
The second law states that every spontaneous process causes a net increase in the entropy of the universe. Many alternative statements are possible, including: Heat cannot be converted to work via ...
alpha particle
Chemistry; General chemistry
A particle that is commonly ejected from radioactive nuclei, consisting of two protons and two neutrons. Alpha particles are helium nuclei. Alpha particles have a mass of 6.644 655 98 × 10-27 kg or ...
