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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. CN¹?
1.38x10?²³J/K
cyanide
insoluble
Pauli Exclusion Principle
2. The reactant in the oxidizing reaction that forces the reduction reaction to occur
van't Hoff Factor
Boltzmann distribution
Calorimetry
Reducing Agent
3. Passage of gas through tiny orifice
salt bridge
Effusion
single bond
+1 - except if bonded to Alkali Metal -1
4. Half-life equation
prop-
Work
N=N.(0.5)^time/time half-life
Root Mean Square Velocity
5. l=1
Dipole-dipole forces
E
-ic acid
p
6. q cal = ?
CAT
Constant Volume
P of a =(X of a)(total pressure)
Graham's Law
7. AX5E
hydroxide
Law of Definite Proportion
% yield
square pyramidal
8. 1/([A]0*k)
second
electron affinity
Solvent
Second-Order Half Life
9. Forward rxn occurs when
Q<K
Barometer
Amount of atoms present
Thermochemistry
10. Pure metal or metal hydride + H20 ->
Chemical Kinetics
standard solution
base and hydrogen gas
Pi Bond
11. Proton acceptors - must have an unshared pair of e?s
Bronsted-Lowry base
-(P)(Change in V)
heat of vaporization
Ideal Gas Law
12. AX5
trigonal bipyramidal
1atm=?Pa
insoluble
Molarity
13. % yield
rate gas A/rate gas B = square root (mm gas B/ mm gas A)
soluble
actual yield/theoretical yield x 100%
?Hvap
14. Force that holds atoms together
Chemical Bonds
Strong acid weak base rxn
Net Ionic Equation
flouride
15. Substance being dissolved in a solution (lower [ ])
conjugate acid
Faraday
Solute
like
16. Spontaneous emission of radiation
E
ether
Radioactivity
equivalence point
17. r=k[A]
surroundings
oxidation
Nodes
First-Order Rate Law
18. (organics) nine carbons
non-
Law of Multiple Proportions
actual yield/theoretical yield x 100%
surroundings
19. Kinetic Energy per molecule
octahedral
1/2mv²
Negative work value; work done by system
octahedral
20. Energy required for liquid?gas
Limiting reactant
Negative work value; work done by system
heat of vaporization
-al
21. If a system @equilibrium is stressed - the system will shift so as to reestablish equilibrium
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22. For colligative properties for electrolytes - the # of mols of ions/ mols of solute
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23. Color of Ba (flame test)
Net Ionic Equation
Diffusion
Colligative properties
green/yellow
24. If Q<Ksp
strong bases
Cathode
square planar
no precipitate forms
25. (organics) ten carbons
Ligand
dec-
period
alkene
26. The total energy of the universe is constant - all systems tend towards minimum energy
1st law of thermodynamics
phosphate - sulfide - carbonate - sulfate
reduction
Arrhenius acid
27. Coffee Cup Calorimeter
Temperature
Molality
Constant Pressure
vapor pressure
28. 90° - d^2sp^3
3/2RT
no precipitate forms
Octahedral
acid
29. Heat needed to change 1 g of substance to 1°C
Buffer
specific heat
-(P)(Change in V)
-2 - with peroxide -1
30. PO4³?
phosphate
s (fourth quantum number)
Cg=kPg
Molecular
31. Measure of the change in enthalpy
exothermic
Arrhenius base
weak acid strong base rxn
Delta H or Enthalpy Change
32. Elements in groups 3-12
hydrocarbons
E
Q<K
Transition metals
33. ln[A]=-kt + ln[A]0
Integrated First-Order Rate Law
Metalliods
Law of Conservation of Mass
-1
34. Releases/gives off heat (negative value)
Arrhenius Acid
Hess's Law
0
Exothermic
35. K=[C]^l[D]^m/[A]^j[B]^k; products/reactants; solids don't count
N=N.(0.5)^time/time half-life
Polar Covalent
Equilibrium Expression
System
36. If anion ends in -ite - acid name ends in...
-ous acid
yellow
charge
Ionic
37. Atomic #
entropy
?Tb= kb x molality
3.0x108m/s
# protons (atom is defined by this)
38. ClO3²?
Normality
Adding
chlorate
1.38x10?²³J/K
39. Molality =
moles solute/kg solvent
lambda
Temperature
LE Model
40. Driving force of the electrons
Cell Potential (Ecell)
conjugate base
phosphate
perchlorate
41. Colors of Reaction when (Cr2O7 2-) --> (Cr 3+)
Entropy (S)
titrant buret
entropy
yellow --> green
42. A weak acid that changes color at or near the equivalence point
0.512°C
Anion
condensation
indicator
43. Occupies the space above and below a sigma bond
Pi Bond
Constant Pressure
Formal Charge
3rd law of thermodynamics
44. 1/[A]=kt + 1/[A]0
q
-one
Integrated Second-Order Rate Law
g solute/g solvent x 100
45. Stronger IMF= lower... weaker IMF= higher...
ionic
vapor pressure
heat capacity
alkane
46. Actual Yield/Theoretical Yield*100%
Equilibrium Expression
Percent Yield
Atmospheric Pressure
Isolated System
47. Universal IMF for nonpolar molecules
phosphate
alkane
vaporization
London dispersion forces
48. Pairs of electrons localized on an atom
Lone Pair
lambda
1 atm = 760 mmHg = 101.3 kPa
C + 273
49. Type of system in which the energy and mass may leave or enter
Polar Covalent
AH
Open System
r1/r2
50. Variable for type of orbital
rate
charge
l (second quantum number)
iodide