Heterogeneous equilibrium
an equilibrium involving reactants and/or products in more than one state
Subject:
Chemistry
Forum reference:
Book page:
http://course-notes.org/Chemistry
Herbicide
a pesticide applied to kill weeds
Subject:
Heisenberg uncertainty principle
a principle stating that there is a fundamental limitation to how precisely we can know both the position and the momentum of a particle at a given time
Subject:
Heating / cooling curve
a plot of temperature versus time for a substance, where energy is added at a constant rate
Subject:
Hard water
water from natural sources that contains relatively large concentrations of calcium and magnesium ions
Subject:
Halogen
a Group 7 element
Subject:
Half -- reactions
the two parts of an oxidation -- reduction reaction, one representing oxidation, the other reduction
Subject:
Half -- life (of a radioactive sample)
the time required for the number of nuclides in a radioactive sample to reach half the original number of nuclides
Subject:
Haber process
the manufacture of ammonia from nitrogen and hydrogen, carried out at high pressure and high temperature with the aid of a catalyst
Subject:
Group (of the periodic table)
a vertical column of elements having the same valence electron configuration and similar chemical properties
Subject:
Pages
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