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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. AX5E
square pyramidal
Isolated System
hex-
experimental yield

2. Thickness
Equilibrium constant
viscosity
1.86°C
square planar

3. Entropy in the universe is always...
C=(mass)(specific heat)
increasing
Pressure of H2O must be Subtracted
Atomic Mass Unit

4. Heat capacity formula
Decrease Volume and Increase Temperature
1atm=?Pa
C=(mass)(specific heat)
Covalently w/in themselves - Ionicly bonded w/ each other

5. Ptotal=Pa+Pb+Pc....

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6. [A]0/2k
green/yellow
Heat
Zero-Order Half Life
-one

7. Within a sublevel - place one e? per orbital before pairing them

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8. (# of valence e- on free atom) - (# of valence e- assigned to atom in molecule)
Tetrahedral
heat of vaporization
Formal Charge
1 atm = 760 mmHg = 101.3 kPa

9. The total energy of the universe is constant - all systems tend towards minimum energy
k=Ae^(-Ea/RT)
square pyramidal
bent
1st law of thermodynamics

10. Color of K (flame test)
purple
chlorite
Bronsted-Lowry Base
condensation

11. Forward rxn occurs when
Q<K
n0
Equilibrium Expression
1atm=?Pa

12. Mol of solute/kg of solvent
d
Molality
Principal Quantum Number
cohesion

13. Significant Digits of Conversion Factors
sublimation
oxide gas and water
endless
solid CO2

14. Ending for alcohols
-ol
insoluble
1 atm
condensation

15. Type of system in which the energy and mass may leave or enter
Balmer Series
Open System
base and hydrogen gas
Entropy (S)

16. Unit of electrical potential; J/C
Temperature
permanganate
Volt
Allotrope

17. H?+OH??H2O
square pyramidal
vaporization
strong acid strong base rxn
Hund's Rule

18. CrO4²?
melting point
Ionic
alkyne
chromate

19. pH=
log[H+]
p+
Amphoteric
second

20. If a system @equilibrium is stressed - the system will shift so as to reestablish equilibrium

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21. The minimum energy that molecules must possess for collisions to be effective - Ea
Force = mass x acceleration
activation energy
blue-green
yellow

22. Organic w/ -O-
Molality
ether
methods of increasing rate
N=N.(0.5)^time/time half-life

23. Liquid to gas
% error
k=Ae^(-Ea/RT)
vaporization
Pressure of H2O must be Subtracted

24. Cr2O7²?
dichromate
m (third quantum number)
Constant Volume
conjugate base

25. 2 or more covalently bonded atoms
% yield
Quantum Model
Molecule
Enthalpy of Solution

26. Molality =
M = square root (3RT/mm)
moles solute/kg solvent
complex ions
Cation

27. Expresses how the concentrations depend on time
Integrated Rate Law
boiling point
?Tb= kb x molality
Bond Energy

28. Cation first - anion second
-ol
Le Chatelier's Principle
Naming Binary Ionic Compounds
Galvanic Cell

29. [A]=-kt + [A]0
Atomic Mass Unit
Joule
Aufbau Principle
Integrated Zero-Order Rate Law

30. Amount of product produced when limiting reactant is used up
Theoretical yield
Arrhenius equation
melting
Van't Hoff factor

31. Variable for type of orbital
l (second quantum number)
Barometer
trigonal bipyramidal
Ionic

32. U(rms)=(3RT/M)^1/2
Root Mean Square Velocity
blue-green
square pyramidal
mol

33. Oxidation # of free elements
0
excess reactant
t-shape
oxide gas and water

34. Force that holds atoms together
Formal Charge
Principal Quantum Number
Nernst Equation
Chemical Bonds

35. 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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36. AX4
eth-
freezing
tetrahedral
hydroxide

37. Spontaneous emission of radiation
heat of vaporization
oxide
experimental yield
Radioactivity

38. Change that occurs at constant temperature
Alkali metals
triple bond
isothermal
linear

39. C=2.9979*10^8 m/s
Speed of light
heat of vaporization
Colligative properties
single bond

40. Happens at lines in phase change charts
viscosity
specific heat
equilibrium
# protons (atom is defined by this)

41. A solution that resists a change in its pH
permanganate
flouride
Buffered Solution
Van't Hoff factor

42. A monoatomic cation takes name from...
Its element
see-saw
Open System
log[H+]

43. Proton (symbol)
p+
Decrease Volume and Increase Temperature
permanent gases
Coordination Compound

44. Significant Digits of counted things
endless
Formal Charge
Adding
Le Chatelier's Principle

45. Actual Yield/Theoretical Yield*100%
Percent Yield
M = square root (3RT/mm)
Diffusion
second

46. STP
triple point
6.63x10?³4Js
0 degrees C - 1 atm
yellow --> green

47. Oxidation # of Halogens
standard solution
Law of Conservation of Energy
-1
rate

48. Organic reaction in which two functional groups come together - resulting in the release of water
activation energy
spontaneity
condensation
Electron Spin Quantum Number

49. The line running between the atoms
surroundings
Sigma Bond
strong acids
-ous acid

50. Energy needed to break a bond
bond energy
insoluble
-2 - with peroxide -1
Nernst Equation