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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. High-speed electrons
diamagnetic
Beta Particles-
1 atm = 760 mmHg = 101.3 kPa
adhesion

2. The part of the universe one is focused upon (in thermodynamics)
heat of vaporization
system
iodide
Antibonding Molecular Orbital

3. Puts OH? into solution
3rd law of thermodynamics
Faraday
Constant Pressure
Arrhenius base

4. Substance that - when dissolved - is conductive
Constant Pressure
electrolyte
-one
chloride

5. F¹?
freezing
flouride
Heisenberg Uncertainty Principle
trigonal bipyramidal

6. Where reduction occurs
heat capacity
3/2RT
M = square root (3RT/mm)
Cathode

7. Force acting over distance
Dalton's Law
Chemical Kinetics
Beta Particles-
Work

8. AX3
Law of Conservation of Energy
Hybridization
trigonal planar
Bronsted-Lowry base

9. Diatomic Molecules
H2 - F2 - N2 - O2 - Cl2 - Br2 - I2
increasing
0.0821 atm L/mol K
Specific Heat (s)

10. Freezing point depression formula
?Tf= kf x molality
Scientific Method
AH rxn = (Sum of AH of formation of products) - (Sum of AH of formation of reactants)
Buffer

11. Oxoacid solution (such as HSO4-) forms...
Root Mean Square Velocity
sulfite
zero
oxide gas and water

12. Proton acceptors - must have an unshared pair of e?s
Positive work value; work done on system
Allotrope
catalyst
Bronsted-Lowry base

13. Change in Energy (AE) = ? (in terms of work)
Amino-
melting point
1/2mv²
AE = q + w

14. Lowers activation energy
catalyst
adhesion
2nd law of thermodynamics
melting

15. Color of Ba (flame test)
Atomic Mass Unit
Bronsted-Lowry Acid
green/yellow
chlorite

16. Ecell= E°cell -RT/nF x lnQ
conjugate base
Effusion
Hydrogen bonding
Nernst Equation

17. Ionizes to produce H+ ions
square pyramidal
Arrhenius Acid
vapor pressure
PV=nRT

18. AX4E2
square planar
sulfate
C + 273
Finding Empirical Formulas

19. How to Find a Weighted Average
Arrhenius equation
H
1) multiply each AMU by the percentage that represents that isotopes occurrence in nature 2) then add all the AMUs together.
rate

20. An element with several different forms - each with different properties (i.e. graphite & diamond)
pent-
Arrhenius base
Allotrope
catalyst

21. Reactant that's completely used up in a chemical reaction
f
Reducing Agent
Limiting reactant
yellow

22. J/°Cg or J/Kg
Specific Heat Capacity
conjugate acid
permanganate
d orbitals

23. What is defined by you taken from the whole universe
System
Kinetic Molecular Theory - for ideal gases
1 atm = 760 mmHg = 101.3 kPa
Cg=kPg

24. AX2E - AX2E2
f
Second-Order Half Life
bent
# protons + # neutrons

25. Energy required for liquid?gas
alkene
heat of vaporization
1.86°C
CAT

26. When ____ significant digits - round answer to least decimal place
red
carbonate
0
Adding

27. Ptotal=Pa+Pb+Pc....

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28. Change that occurs at constant temperature
bent
Thermochemistry
isothermal
increasing

29. Organic reaction in which two functional groups come together - resulting in the release of water
fusion
condensation
Arrhenius base
s (fourth quantum number)

30. Change in moles (An) =?
Zero-Order Half Life
activation energy
(moles of products that are gasses) - (moles of reactants that are gasses)
Dipole Moment

31. Amount of heat needed to change a system by 1°C
Sigma Bond
hydrolysis
Endothermic
heat capacity

32. A solution used in titrations whose concentration is known
like
Joule
amine
standard solution

33. AX5
trigonal bipyramidal
entropy (S)
1atm=?mmHg/Torr
voltaic cells

34. Colors of Reaction when (MnO4 -) --> (Mn2+)
purple --> pink
Equivalence Point
Zero-Order Rate Law
Hydrogen bonding

35. AX3E
trigonal pyramidal
Acid Dissociation Constant
Amphoteric
M = square root (3RT/mm)

36. 1/[A] vs. time is a ...-order reaction
second
Ag+ - Pb2+ - Hg2+
salt bridge
-one

37. All cations are soluble with sulfate EXCEPT
Ag+ - Pb2+ - Hg2+ - Sr2+ - Ca2+ - Ba2+
nitrate
ionic
+1 - except if bonded to Alkali Metal -1

38. 760mmHg/Torr
1atm=?mmHg/Torr
isothermal
Ag+ - Pb2+ - Hg2+
Resonance

39. Delta H (AH) = ?
q/moles
r1/r2
acetate
boiling point

40. Happens at lines in phase change charts
First-Order Rate Law
equilibrium
1) Convert to moles 2) divide by lowest moles 3) if any halfs - double all values 4) plug into Compound
green/yellow

41. A device used to measure Delta H
nitrite
Calorimeter
like
Isolated System

42. PO4³?
phosphate
Specific Heat Capacity
Acids
Calorimeter

43. AX4E2
square planar
Integrated Second-Order Rate Law
first
Molal FP Depression Constant

44. All cations are soluble with bromide - chloride and iodide EXCEPT
Law of Conservation of Energy
Ag+ - Pb2+ - Hg2+
Ionic
Pressure

45. Hydroxides are soluble or insoluble?
are not
Bronsted-Lowry base
insoluble
strong bases

46. Atoms with the same number of protons but a different number of neutrons
linear
Isotopes
l (second quantum number)
s orbitals

47. We cannot simultaneously determine an atom's exact path or location
reduction agent
Heisenberg Uncertainty Principle
Cathode
22.4L

48. neutron (symbol)
n0
Coordination Compound
Magnetic Quantum Number (ml)
Anion

49. The total entropy is always increasing - all systems tend towards maximum entropy
2nd law of thermodynamics
Solvent
3.0x108m/s
1) Assume percentages are g (where you have 100 g) 2) convert to moles 3) divide by lowest value 4) plug into compound

50. Planck's constant - used to calculate energy w/frequency
square pyramidal
6.63x10?³4Js
Volume Metric Flask & Pipet
n0