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AP Chemistry

Instructions:

Answer 50 questions in 15 minutes.
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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. Half cell in which oxidation occurs
Matter
condensation
Amount of atoms present
anode

2. How to Balance a Redox Equation
Galvanic Cell
Aufbau Principle
trigonal pyramidal
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

3. q rxn = ?
Weight
0
Arrhenius Acid
-(q of H2O + q of cal)

4. (organics) triple-bonded compound
alkyne
Volt
heat of vaporization
specific heat

5. (organics) nine carbons
a precipitate forms
Kinetic Molecular Theory - for ideal gases
non-
not spontaneous

6. Isotope
Molar Mass of Element/ Total Molar Mass %
Finding Empirical Formulas
Ionic
different # of neutrons

7. Where oxidation occurs
Anode
methoxy-
Molarity
Solvent

8. Entropy in the universe is always...
Kinetic Molecular Theory - for ideal gases
increasing
0
p orbitals

9. Oxidation # of Ions
charge
ionic
Integrated Second-Order Rate Law
Mass

10. Raoult's Law - relations between vapor pressure and concentrations
msAT
P1= X1P1°
Percent Yield
Specific Heat (s)

11. Mole Fraction
catalyst
Acid + Base --> Salt + Water
Finding Empirical Formulas
X of a = moles a/total moles

12. [A] vs. time is a ...-order reaction
surroundings
zero
Manometer
Balmer Series

13. J/°Cmol or J/Kmol
Molecular Compounds
Molar Heat Capacity
oxide gas and water
sulfide

14. Nonmetal oxide + H2O ->
hept-
hydrolysis
octahedral
acid

15. Spectrum of light when an electron drops to energy level n=2
Balmer Series
trigonal bipyramidal
v3RT/M(in kg)
linear

16. Matter can't be created nor destroyed
octahedral
Pauli Exclusion Principle
third
Law of Conservation of Mass

17. Oxidation # of Polyatomic Ions
catalyst
Valence Electrons(assigned)
State Functions
charge

18. If K>1 - then Gº<0 and reaction will be...at chemical equilibrium
Volt
spontaneous
blue
d

19. Happens at lines in phase change charts
trigonal pyramidal
equilibrium
melting
Oxidation is Loss Reduction is Gain

20. Coffee Cup Calorimeter
meth-
Constant Pressure
Atomic Mass Unit
Adding

21. Color of K (flame test)
Barometer
alkene
Trigonal Planar
purple

22. Cl¹?
Ag+ - Pb2+ - Hg2+
rate law
1) Convert to moles 2) divide by lowest moles 3) if any halfs - double all values 4) plug into Compound
chloride

23. An element with several different forms - each with different properties (i.e. graphite & diamond)
charge
Average KE = 1/2(mass)(average speed of all particles)
Allotrope
complex ions

24. Aldehyde suffix
-al
Dalton's Law of Partial Pressures
Equilibrium constant
q/moles

25. Two molecules with identical connectivity but different geometries
double bond
bent
geometric isomers
exothermic

26. Elements on staircase on periodic table
22.4L
Metalliods
Bronsted-Lowry acid
Ionic Compounds

27. Group 1 metals
Ionic Compounds
Alkali metals
Nernst Equation
Allotrope

28. % yield
Hess's Law
zero
actual yield/theoretical yield x 100%
flouride

29. ClO4¹?
Bonding Pairs
perchlorate
Trigonal Planar
Mass

30. E?s fill the lowest energy orbital first - then work their way up
Aufbau Principle
0 degrees C - 1 atm
Equivalence Point
chlorate

31. How fast or slow a reaction occurs - becomes slower as it reaches equilibrium
trigonal bipyramidal
rate
p orbitals
oxidizing agent

32. C=2.9979*10^8 m/s
chloride
Speed of light
Faraday
1) multiply each AMU by the percentage that represents that isotopes occurrence in nature 2) then add all the AMUs together.

33. Organic w/ -NH2
0 degrees C - 1 atm
amine
hex-
-oic acid

34. A monoatomic cation takes name from...
Its element
meth-
melting point
Aufbau Principle

35. Where there are no electrons
Polar Covalent
purple
activated complex (transition state)
Nodes

36. 760mmHg/Torr
1atm=?mmHg/Torr
Alkali metals
Bonding Pairs
ether

37. A device in which chemical energy is changed to electrical energy
activated complex (transition state)
Multiplying
hydroxide
Galvanic Cell

38. Solid to liquid
melting
-oate
group
purple --> pink

39. (organics) eight carbons
Molar Heat Capacity
Bond enthalpy
oct-
charge

40. Describe various properties of one orbital
Quantum Numbers
Bronsted-Lowry Acid
Zero-Order Rate Law
entropy (S)

41. High-energy light
weak acid strong base rxn
reduction agent
Quantum Model
Gamma Ray-

42. Energy (definition)
m (third quantum number)
Ag+ - Pb2+ - Hg2+
force x distance = work done
sulfite

43. Symbol for Total Heat absorbed or released
0.0821 atm L/mol K
q
(moles of products that are gasses) - (moles of reactants that are gasses)
boiling point

44. C2H3O2¹?
acetate
Positive work value; work done on system
Integrated Zero-Order Rate Law
conjugate acid

45. How to Find an Empirical Formula Given Percentages
1) Assume percentages are g (where you have 100 g) 2) convert to moles 3) divide by lowest value 4) plug into compound
chloride
rate gas A/rate gas B = square root (mm gas B/ mm gas A)
Linear

46. A solution that resists a change in pH - contains both a weak acid and its conjugate base
log[H+]
Pressure of H2O must be Subtracted
Buffer
indicator

47. 1.Calculate moles of each atom in molecule 2.Divide each mole number by smallest mole number 3.If necessary - multiply every mole number to get a whole number 4.Moles of each atom is subscript in empirical formula
force x distance = work done
rate law
Finding Empirical Formulas
standard solution

48. AP doesn't deal with ...-order reaction - don't pick it!
ln (k1/k2) = (Ea/R)(1/T2-1/T1)
third
not spontaneous
Quantum Numbers

49. Force that holds atoms together
Chemical Bonds
Second-Order Half Life
nitrite
Monoprotic

50. .69/k
yellow --> green
different # of neutrons
First-Order Half Life
exothermic