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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. Type of system in which the energy may escape - but the mass is conserved
Closed System
trigonal planar
perchlorate
but-
2. R=
are
0.0826Latm/Kmol
Molar Heat Capacity
H
3. AX3E2
Chemical Bonds
Bonding Pairs
t-shape
Closed System
4. A device used to measure Delta H
hydrolysis
geometric isomers
Heat Capacity (C)
Calorimeter
5. Variable for orientation of orbital (-1 through +1)
m (third quantum number)
Balmer Series
permanganate
# protons (atom is defined by this)
6. If K<1 - then Gº>0 and reaction will be...at chemical equilibrium
square pyramidal
not spontaneous
octahedral
Bronsted-Lowry Base
7. Passage of gas through tiny orifice
Entropy (S)
Effusion
Adding
STP
8. Cl¹?
chloride
LeChatelier's Principle
m (third quantum number)
Dipole-dipole forces
9. Carbon & hydrogen compounds
Standard Temperature and Pressure
-(P)(Change in V)
Polar Covalent
hydrocarbons
10. Different form of same element
allotrope
Electron Spin Quantum Number
cyanide
N=N.(0.5)^time/time half-life
11. A measure of randomness or disorder
entropy
Hydrogen bonding
Thermochemistry
Amphoteric
12. AX4E
experimental yield
Oxidizing Agent
prop-
seesaw
13. SI unit of energy; Kg*m^2/s^2
Arrhenius base
conjugate acid
Joule
Theoretical yield
14. Speed of light - C
Theoretical yield
3.0x108m/s
Overall Reaction Order
l (second quantum number)
15. Anything occupying space and with mass
Matter
deposition
Electronegativity
Magnetic Quantum Number (ml)
16. For significant digits - trailing zeros _____ significant
Isolated System
purple --> pink
viscosity
are
17. Change in Energy = ? (in terms of constant pressure; for gasses)
AE= AH - RTAn
v3kT/m
P1= X1P1°
trigonal planar
18. Larger molecules which have higher mass and therefore electron density have stronger...
hept-
are
London dispersion forces
blue-violet
19. ClO3²?
Monoprotic
equilibrium
Dalton's Law
chlorate
20. AX5
trigonal bipyramidal
Oxidation is Loss Reduction is Gain
Acid + Base --> Salt + Water
high pressure - low temperature
21. Mass/volume
square planar
Scientific Method
Density
oxide
22. AX6
zero
octahedral
Second-Order Half Life
Dipole-dipole forces
23. Delta H (AH) = ?
1st law of thermodynamics
q/moles
tetrahedral
1atm=?Pa
24. (organics) two carbons
n0
eth-
indicator
-oic acid
25. AX4E2
adhesion
nitrite
square planar
Electron Spin Quantum Number
26. C2O4²?
Integrated First-Order Rate Law
Boltzmann distribution
Covalently w/in themselves - Ionicly bonded w/ each other
oxalate
27. Pairs of electrons localized on an atom
methoxy-
Anode
blue-violet
Lone Pair
28. Proton (symbol)
Equilibrium Expression
equilibrium
Its root and adding -ide
p+
29. If anion ends in -ate - acid name ends in...
Equilibrium constant
second
-ic acid
Molarity
30. Involves quantum numbers
Molal BP Elevation Constant
Quantum Mechanical Model
(moles of products that are gasses) - (moles of reactants that are gasses)
alcohol
31. Theoretical yield-experimental yield/theoretical yieldx100
% error
2nd law of thermodynamics
Isotopes
no precipitate forms
32. 1/([A]0*k)
Second-Order Half Life
reduction
vapor pressure
red
33. A monoatomic cation takes name from...
zero
Its element
Positive work value; work done on system
Atomic Mass Unit
34. Metal oxide + H20 ->
reduction
Isolated System
LeChatelier's Principle
base
35. Variable for type of orbital
experimental yield
l (second quantum number)
increasing
Percent Yield
36. Mol/L - concentration of a solution
sulfate
Principal Quantum Number
Molarity
p
37. Boltzmann constant - used in calculating speed of gas per molecule
(moles of products that are gasses) - (moles of reactants that are gasses)
1.38x10?²³J/K
Constant Volume
Heat
38. Work = ?
-(P)(Change in V)
Arrhenius acid
Molecular Orbitals (MOs)
yellow --> green
39. Type of system in which nothing is transfered (no mass or energy); ideal
Gamma Ray-
Cg=kPg
Isolated System
Molecular
40. HCl - HBr - HI - HNO3 - HClO4 - H2SO4
log[H+]
strong acids
end point
methoxy-
41. When gas compresses ...
Octahedral
pi=(nRT)/v
4.184
Positive work value; work done on system
42. Similar to atomic orbitals - except between molecules
Molecular Orbitals (MOs)
Aufbau Principle
n0
log[H+]
43. Transition metals with ammonia - hydroxide - cyanide or thiocyanate form...
complex ions
nitrate
r1/r2
London dispersion forces
44. Force acting over distance
carbohydrates
Work
Chemical Kinetics
-oic acid
45. Bomb Calorimeter
Constant Volume
Angular Momentum Quantum Number
Hess's Law
1atm=?Pa
46. (organics) eight carbons
oct-
g solute/g solvent x 100
Arrhenius acid
1) Assume percentages are g (where you have 100 g) 2) convert to moles 3) divide by lowest value 4) plug into compound
47. When _____ significant digits - round answer to least significant digit
spontaneity
Multiplying
1 atm
Bond Order
48. Color of Ba (flame test)
acetate
vapor pressure
green/yellow
Trigonal Planar
49. Neutralization Reaction (general format) (net ionic of which is always (H+) + (OH-) --> (H2O))
Beta Particles-
octahedral
3/2RT
Acid + Base --> Salt + Water
50. Nonmetal oxide + H2O ->
acid
entropy
perchlorate
triple bond