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Test your basic knowledge |
AP Chemistry
Start Test
Study First
Subjects
:
science
,
ap
,
chemistry
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Heat capacity formula
Pi Bond
Molecular
C=(mass)(specific heat)
96500
2. A solution that resists a change in pH - contains both a weak acid and its conjugate base
Pressure
are
hydro-ic acid
Buffer
3. Occupies the space above and below a sigma bond
permanent gases
Pi Bond
Reaction Quotient (Q)
charge
4. High-speed electrons
Beta Particles-
Pressure
equivalence point
r1/r2
5. A given compound always has exactly the same proportion of elements by mass
Law of Definite Proportion
Arrhenius acid
strong bases
mol
6. n+m (these are orders of reactants)
Molar Heat Capacity
Overall Reaction Order
trigonal bipyramidal
Bronsted-Lowry Base
7. Has values 1 -2 -3 -...; tells energy levels
Principal Quantum Number
s
carbohydrates
-2 - with peroxide -1
8. 2 or more covalently bonded atoms
Molecule
carbohydrates
Speed of light
-(q of H2O + q of cal)
9. An equilibrium expression
Work
?Tf= kf x molality
Beta Particles-
Solubility Product (Ksp)
10. H+ Acceptor
Molar Mass of Element/ Total Molar Mass %
mol
Molar Heat Capacity
Bronsted-Lowry Base
11. % yield
actual yield/theoretical yield x 100%
not spontaneous
-ol
London dispersion forces
12. Where reduction occurs
Entropy (S)
Cathode
1/2mv²
log[H+]
13. Delta H (AH) = ?
q/moles
trigonal bipyramidal
like
Coordination Compound
14. l=3
1) Convert to moles 2) divide by lowest moles 3) if any halfs - double all values 4) plug into Compound
entropy (S)
f
endless
15. Donates a single H+ Ion (... other prefixes also)
Monoprotic
methods of increasing rate
different # of neutrons
N=N.(0.5)^time/time half-life
16. STP
Beta Particles-
0 degrees C - 1 atm
v3kT/m
Force = mass x acceleration
17. Symbol for Enthalpy
Ampere
H
purple --> pink
trigonal bipyramidal
18. Boiling point elevation formula
Galvanic Cell
charge
?Tb= kb x molality
a precipitate forms
19. The rest of the universe (in thermodynamics)
surroundings
Linear
H2 - F2 - N2 - O2 - Cl2 - Br2 - I2
Solution
20. Larger molecules which have higher mass and therefore electron density have stronger...
London dispersion forces
Entropy (S)
Atomic Mass Unit
chlorate
21. In a titration - the point where the indicator changes (just after moles of solid are equal to moles of base)
End Point
Quantum Mechanical Model
q/moles
Oxidizing Agent
22. A method of investigation involving observation and theory to test scientific hypotheses
octahedral
Scientific Method
0
% yield
23. The lowest energy configuration for an atom is the one having the max number of unpaired electrons allowed by the Pauli principle in a set of degenerate orbitals
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24. Substances w/ critical temperatures below 25°C
Pressure
Speed of light
Standard Temperature and Pressure
permanent gases
25. Solid to gas
Boltzmann distribution
boiling point
sublimation
Osmotic Pressure
26. (organics) six carbons
rate
but-
critical point
hex-
27. Horizontals on the periodic table
End Point
-1
period
Chemical Kinetics
28. Has values from -l to l - including zero; tells orientation of the orbital relative to other orbitals
nu
System
seesaw
Magnetic Quantum Number (ml)
29. (organics) two carbons
London dispersion forces
End Point
Equilibrium constant
eth-
30. Temperature-pressure combination at which solid - liquid - and gas states appear
triple point
Hybridization
Pressure
conjugate acid
31. If a change is imposed on a system at equilibrium - the position of the equilibrium will shift in a direction that tends to reduce that change
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32. Point at which vapor pressure=air pressure above
Pressure of H2O must be Subtracted
# protons (atom is defined by this)
Bronsted-Lowry Base
boiling point
33. The driving force for a spontaneous is an increase in entropy of the universe
Dalton's Law of Partial Pressures
Entropy (S)
-2 - with peroxide -1
permanent gases
34. The weight exerted by a column of air or the pressure exerted by the Earth's atmosphere
see-saw
Atmospheric Pressure
Hydrogen bonding
perchlorate
35. If Q<Ksp
ln (k1/k2) = (Ea/R)(1/T2-1/T1)
no precipitate forms
octahedral
Alkali metals
36. Force that holds atoms together
Coordination Compound
Chemical Bonds
-one
X of a = moles a/total moles
37. Verticals on the periodic table
red
3/2RT
Valence Electrons(assigned)
group
38. l=0
melting
s
Radioactivity
London dispersion forces
39. R=
like
activated complex (transition state)
blue-violet
0.0826Latm/Kmol
40. Electron (symbol)
Isotopes
Arrhenius Acid
e-
Equilibrium Expression
41. R=
octahedral
8.31J/Kmol
4.184
1st law of thermodynamics
42. (N) number of equivalents per liter of solution
bond energy
Acid Dissociation Constant
like
Normality
43. Oxidation # of Ions
charge
London dispersion forces
k=Ae^(-Ea/RT)
-oic acid
44. PV=nRT
Ideal Gas Law
(moles of products that are gasses) - (moles of reactants that are gasses)
Monoprotic
PV=nRT
45. Speed of Diffusion/Effusion formula
Alkali metals
Positive work value; work done on system
rate gas A/rate gas B = square root (mm A/ mm B)
Dalton's Law of Partial Pressures
46. What is defined by you taken from the whole universe
Van't Hoff factor
1st law of thermodynamics
System
m (third quantum number)
47. Proton (symbol)
p+
System
First-Order Half Life
Work
48. Colors of Reaction when (MnO4 -) --> (Mn2+)
catalyst
blue
purple --> pink
Ag+ - Pb2+ - Hg2+
49. If anion ends in -ide - acid name ends in
viscosity
insoluble
hydro-ic acid
Law of Definite Proportion
50. 0°C and 1 atm
Second-Order Rate Law
red
STP
Heat