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AP Chemistry

Instructions:

Answer 50 questions in 15 minutes.
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Match each statement with the correct term.
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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. Color of Li (flame test)
red
q/moles
Cg=kPg
5% rule

2. High-speed electrons
Beta Particles-
Mass
n (first quantum number)
+1 - except if bonded to Alkali Metal -1

3. Cl¹?
boiling point
sulfate
chloride
Beta Particles-

4. 760 mmHg - 760 torr
Alkaline earth metals
dec-
1 atm
pi=(nRT)/v

5. Symbol for the heat absorbed or lost molecularly (PER MOLE)
H
Arrhenius Base
Temperature
AH

6. An element with several different forms - each with different properties (i.e. graphite & diamond)
end point
Allotrope
viscosity
s orbitals

7. The rest of the universe (in thermodynamics)
surroundings
charge
Molality
Ionic

8. In going from a particular set of reactants to a particular set of products - the change in enthalpy is the same whether the reaction takes place in one step or in a series of steps

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9. (# of lone pair e-)+1/2(# of shared e-)
Valence Electrons(assigned)
T-shape
Second-Order Half Life
Entropy (S)

10. C=2.9979*10^8 m/s
Speed of light
Density
Amphoteric
acid

11. Thickness
prop-
viscosity
flouride
H

12. Energy required to break a bond
Arrhenius acid
Bond Energy
Net Ionic Equation
Second-Order Half Life

13. Planck's constant - used to calculate energy w/frequency
Trigonal Bipyramidal
1)Assign Oxidation #s 2) Half Reaction 3) Balance Moles 2) Balance add e- to balance Oxidation #s (RED-OX = reduction on left - Oxidation on right) 4) Add H+ or OH - to balance charge 5) Add H2O to balance hydrogens 4) Balance electrons by multiplyin
6.63x10?³4Js
Manometer

14. l=3
f
triple bond
catalyst
m (third quantum number)

15. Point where acid completely neutralizes base
Atomic Mass Unit
1)Assign Oxidation #s 2) Half Reaction 3) Balance Moles 2) Balance add e- to balance Oxidation #s (RED-OX = reduction on left - Oxidation on right) 4) Add H+ or OH - to balance charge 5) Add H2O to balance hydrogens 4) Balance electrons by multiplyin
equivalence point
Arrhenius Acid

16. A measure of resistance of an object to a change in its state of motion
s
sublimation
Molecule
Mass

17. The total entropy is always increasing - all systems tend towards maximum entropy
2nd law of thermodynamics
Open System
alkane
C=(mass)(specific heat)

18. A device used to measure Delta H
reduction
LeChatelier's Principle
Calorimeter
Monoprotic

19. OH¹?
rate gas A/rate gas B = square root (mm A/ mm B)
hydroxide
Molecule
octahedral

20. Force that holds atoms together
Law of Multiple Proportions
Integrated First-Order Rate Law
entropy (S)
Chemical Bonds

21. Point at which vapor pressure=air pressure above
Nernst Equation
boiling point
Exothermic
s orbitals

22. Mol of solute/kg of solvent
Molality
charge
Counterions
Law of Conservation of Mass

23. Composition Formula
amine
cathode
Molar Mass of Element/ Total Molar Mass %
end point

24. Mass percent
T-shape
heat capacity
g solute/g solvent x 100
high pressure - low temperature

25. The total energy of the universe is constant - all systems tend towards minimum energy
dichromate
1st law of thermodynamics
P of a =(X of a)(total pressure)
Cell Potential (Ecell)

26. When n=3 ->2 - color=
phosphate - sulfide - carbonate - sulfate
nitrate
red
Finding Empirical Formulas

27. K
Linear
Equilibrium constant
Increase Temperature
Q>K

28. Puts H? into solution
Pauli Exclusion Principle
Arrhenius acid
cohesion
a precipitate forms

29. AP doesn't deal with ...-order reaction - don't pick it!
blue-green
third
heat of vaporization
Arrhenius acid

30. Occupies the space above and below a sigma bond
Heisenberg Uncertainty Principle
Amount of atoms present
Pi Bond
LeChatelier's Principle

31. Oxidation # of Halogens
catalyst
sulfide
?Tf= kf x molality
-1

32. Mol/kg of solvent - used in calculating colligative properties
condensation
Thermochemistry
Molality
oxalate

33. Force acting over distance
strong acid strong base rxn
Work
viscosity
tetrahedral

34. Wavelength symbol
Exothermic
Faraday
viscosity
lambda

35. Positive ion
Cation
Calorimetry
Manometer
solid CO2

36. F¹?
mol Fraction
flouride
wavelength
hydroxide

37. Point at which liquid?gas occurs
boiling point
T-shape
N=N.(0.5)^time/time half-life
Molecular Compounds

38. J/°Cmol or J/Kmol
Molar Heat Capacity
alkyne
Law of Conservation of Energy
s orbitals

39. Molarity (M)
sulfate
charge
moles of solute/ L of solution
heat of fusion

40. Oxidation # of free elements
viscosity
Allotrope
0
Molar Heat Capacity

41. Energy (definition)
supercritical fluid
3.0x108m/s
dichromate
force x distance = work done

42. The measurement of heat changes
Weight
melting point
endless
Calorimetry

43. Work = ?
oxide
electron affinity
paramagnetic
-(P)(Change in V)

44. Colors of Reaction when (MnO4 -) --> (Mn2+)
purple --> pink
Alkali metals
q
1 atm

45. ln[A]=-kt + ln[A]0
endothermic
alkene
Integrated First-Order Rate Law
bond energy

46. Temperature-pressure combination at which solid - liquid - and gas states appear
triple point
geometric isomers
1.86°C
s orbitals

47. Dirrect Method Formula
chromate
Integrated Zero-Order Rate Law
AH rxn = (Sum of AH of formation of products) - (Sum of AH of formation of reactants)
Buffer

48. C2O4²?
Kinetic Molecular Theory - for ideal gases
violet
square pyramidal
oxalate

49. Color of Sr (flame test)
fusion
octahedral
96500
red

50. AX5
pent-
Graham's Law
chloride
trigonal bipyramidal