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How do you determine the force on a particle in an electric field?
Force=charge of the particle x the magnitude of the field F=qE
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Fastest evaporating substance has the __________ vapor pressure
highest
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Sound travels fastest through
solids fastest, liquids and then air slowest
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how are frequency and period related?
- Period= 1/frequency
- they are inversely related
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Sound travels faster in _____ temps
high
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What is the formula for the work done if you lift a mass from a to b?
W=mg(change in height)
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Galvanic cells....
always have a positive standard EMF (electron motive force)
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Rapid processes are often adiabatic. Adiabatic means....
no heat is exchanged
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If an ion has 6 ligands attached to a metal, it is said to be..... in shape
octahedral
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Lewis acids....
accept electron pairs
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Bronsted bases
take a hydrogen proton
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______ occurs at the cathode
reduction (i.e. Al(3+) becomes Al
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the focal length of a sperical mirror is what?
the focal length of a spherical mirror is one halth the radius of the curvature
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snells law says what
na sin θa = nl sin θl the index of refraction of two substances are related by the sin angle of the normal
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the magnitude of an electic field on a point charge formula
E = (kq)/r2
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atomic number
number of protons in a nucleus
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What do standard reduction potentials show? (i.e. a large, positive)
- a LARGE POSITIVE STANDARD REDUCTION POTENTIAL means that the thing will be REDUCED MORE EASILY
- so if the thing with the larger potential GAINS ELECTRONS in the reaction, that is more favorable
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The ANODE is the site of ___________
OXIDATION
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in a cell, current flows toward the
negative end
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in a galvanic cell, electrons (not current) flow toward the
positive end (current flows to the negative end)
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adiabatic
Adiabatic heating or cooling of a gas results from pressure change. Work is done on or by the gas, but there is no heat transfer with the environment.
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Adding resistors in parallel...____________. the overall resistance of the circuit
decreases
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under alpha decay the daughter nucleus....
has 2 fewer protons and two fewer neutrons
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what is the volume of one mol of ideal gas?
22.4 liters
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In an electrolytic battery the anode is _____
positive and the cathode is negative
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somatostatin
a pancreatic enzyme that is made when there is alot of glucose in the blood and it makes the levels of both insulin and glucagon go down
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