vocabulary from summer assignment Flashcards
activation energy
minimum energy needs to be added to a system in order for the chemical reaction to occur, how much energy it needs to work
anion
negatively charged ion
arrhenius acid
donates an h+ ion, can easily give hydrogen ion or proton in its aqueous solution
Arrhenius base
Donates an OH- ion
atom
smallest constituent unit of ordinary matter that has the properties of a chemical element
atomic mass
average of all naturally occurring isotopes
atomic number
number of protons; defines the atom
boiling
phase change from a liquid to a gas
Bronsted-Lowry Acid
proton donor
Broasted-Lowry Base
proton acceptor
Calorimetry
-means of measuring the heat gained/lost by a system during a chemical reaction
- used to measure the amount of heat transferred from one substance to another
catalyst
lowers the activation energy
speeds up a reaction
not a reactant, not a product
cation
positively charged ion
chemical equilibrium
rate of the forward reaction equals the rate of the reverse reaction
condensation
phase change from a gas to a liquid
covalent bond
bond formed by the sharing of electrons between atoms
mutual sharing of one or more electrons between two atoms
deposition
phase change from a gas to a liquid
dipole-dipole interaction
attractive forces between the positive end of one polar molecule and the negative end of another
permanent IMF present in polar molecules
dissociate
to break into ions
dissolve
to break into smaller pieces