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Chemistry test 2
Term | Definition |
---|---|
oxidation | the process of losing electrons |
reduction | the process of gaining electrons |
oxidizing agent | always gets reduced |
reducing agent | always gets oxidized |
dilution equation | M1V1 = M2V2 |
exothermic process | the reactants have a higher internal energy than the products - delta E is negative |
endothermic process | the reactants have a lower internal energy than the products - delta E is positive |
calorimeter heat of reaction | q (rxn) = -q (calorimeter) |
heat equation | q = m*C*deltaT |
enthalpy equation | deltaH = H (products) - H (reactants) |
Hesse's Law | enthalpy for a reaction is the same whether it occurs in one step or several steps |
specific heat of water | 4.18 J/g*deg.C |
wavelength equation | speed = wavelength*frequency |
speed of light in a vaccum | 3 * 10^8 |
Planck's constant | h = 6.626*10^-34 |
energy equation | -2.179*10^-18 (1/n^2) |
absorbtion | up arrow |
emission | down arrow |
long wavelength, low frequency, low energy | short arrow |
short wavelength, high frequency, high energy | long arrow |
l = 0 | s |
l = 1 | p |
l = 2 | d |
l = 3 | f |
l = 4 | g |
Pauli exclusion principle | no two electrons in an atom can have the exact same values for all four quantum numbers |
Heisenberg uncertainty principle | it is impossible to know both the location and the momentum of an electron simultaneously |
s orbital | spherical |
p orbital | dumbbell |
d orbital | cloverleaf |
n | principal quantum number |
l | angular momentum quantum number |
Ml | magnetic quantum number |
Ms | electron spin number |
n | energy and distance from the nucleus |
l | subshell - orbital shape |
m | orbital orientation |
energy equation | deltaE = heat (q) + work (w) |
Max Planck | blackbody radiation, Planck's constant |
Albert Einstein | the photoelectric effect |
Niels Bohr | emission spectra, Bohr model of the atom |
Werner Heisenberg | quantum mechanics, uncertainty principle |
Schrondinger and Dirac | quantum mechanics |