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Chemistry Overview

Word List with 31 words
*By Dictionary.com

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Words in This List

acidity
noun
the quality or state of being acid
atomic number
noun
number of protons in the nucleus of an atom of an element
atomic weight
noun
mass of an atom expressed in atomic mass units, which the hydrogen atom has the weight of one
avogadro's number
noun
6.02 10 to the 23rd power, indicating the number of atoms or molecules in a mole of any substance
base
noun
compound that reacts with an acid to form a salt
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boyle's law
noun
when temperature remains constant, volume of a mass of gas is inversely proportional to pressure
charles's law
noun
when pressure remains constant, volume of a mass of a gas is proportional to its temperature
chemical equilibrium
noun
point in a chemical reaction when the quantities of reactants and products no longer change
covalent bond
noun
type of chemical bond involving the sharing of electrons between atoms in a molecule
electrolytic cell
noun
device for producing electrolysis, consisting of the electrolyte, its container, and the electrodes
electronic structure
noun
order of electrons in an atom, including number, distribution around the nucleus and their energies
enthalpy
noun
measure of the total energy of a thermodynamic system
entropy
noun
measure of the energy not available for work in a thermodynamic process
faraday
noun
unit of electricity used in electrolysis, equal to 96,500 coulombs
formula weight
noun
molecular weight; the sum of the atomic weights of all the atoms in a molecule
ionic bond
noun
electrostatic bond between two ions formed through the transfer of one or more electrons
isotope
noun
one of two or more atoms that have the same number of protons but a different number of neutrons
law of conservation mass
noun
principle that the total mass of a closed system is unchanged by interaction of its parts
le chatelier's principle
noun
if a system at equilibrium is disturbed, it will change to minimize the effect of the disturbance
lewis formulas
noun
diagrams that depict bonds between atoms of molecules and unbonded electron pairs
mass number
noun
total number of protons and neutrons in the nucleus of an atom
mole
noun
molecular weight of a substance expressed in grams; gram molecule
neutralize
verb
to add an acid to a basic solution or a base to an acidic solution, resulting in a neutral solution
oxidation
noun
process of oxidizing; the chemical combination of a substance with oxygen
ph
noun
symbol used to express the acidity or alkalinity of a solution on a scale of 0 to 14, 7 is neutral
redox reaction
noun
oxidation-reduction reaction; chemical reaction in which atoms have their oxidation number changed
reduction
noun
the process or result of reducing
strong electrolyte
noun
solute that completely, or almost completely, ionizes or dissociates in a solution
valence electron
noun
electron in one of the outer shells of an atom that can form chemical bonds with other atoms
voltaic cell
noun
device that generates electrical energy from chemical energy
weak electrolyte
noun
electrolyte that gives a low percentage yield of ions when dissolved in water

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