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Science vocabulary

Exploring Creation w/ Chemistry - vocabulary (A-B)

Absolute temperature scale The Kelvin temperature scale
Accuracy An indication of how close a measurement is to the true value
Acid A molecule that donates H+ ions
Acid ionization constant The equilibrium constant for an acid's ionization reaction
Acid ionization reaction The reaction in which an H+ separates from an acid molecule so that is can be donated to an other reaction
Activated complex Another name for the intermediate state of a chemical reaction
Activation energy The energy necessary to start a chemical reaction
Alkaline dry cell A dry cell made with a potassium hydroxide salt bridge
Amphiprotic compound Compounds that can act as either an acid or a base, depending on the situation
Amphoteric compound Another name for Amphiprotic compounds
Amplitude (light) A measure of the height of the crests or the depth of the troughs on a wave
Anion A negative ion
Anode The electrode at which oxidation occurs
Atom The smallest chemical unit of matter
Atomic mass The number on the periodic chart that is below an element's symbol. It represents the average mass of an atom's isotopes in atomic mass units.
Atomic mass units The mass unit used on the periodic chart: 1.00amu = 1.66x〖10〗^(-24)
Atomic number The number on the periodic table that is above the element's symbol. It represents the number of protons in the nucleus of the atom
Atomic radius The average radius of an atom
Avogadro's number the number of molecules or atoms in a mole: 6.02x〖10〗^23
Base A molecule that accepts H+ ions
Bent A molecular shape in which a central atom is Bonded to two other atoms. The bond are 105 degrees apart.
Boiling The process a substance changes from its liquid phase to its to its gas phase.
Boiling point The temperature at which the vapor pressure of a liquid is equal to normal atmospheric pressure.
Boiling-point elevation When a solute is dissolved in a solvent, the boiling point of the solution will be higher than that of the pure solvent.
Bond energy The energy required to break a bond
Boyle's Law At constant temperature, the pressure and volume of a gas are inversely related.
Created by: Autumn Fairall



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