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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. Like dissolves...
red
like
Normality
Bonding Pairs

2. Point at which solid?liquid occurs
Buffered Solution
geometric isomers
-(P)(Change in V)
melting point

3. We cannot simultaneously determine an atom's exact path or location
double bond
Amino-
Resonance
Heisenberg Uncertainty Principle

4. Hydroxides are soluble or insoluble?
CAT
Trigonal Planar
activated complex (transition state)
insoluble

5. r=k
Pauli Exclusion Principle
carbonate
Zero-Order Rate Law
Temperature

6. The rest of the universe (in thermodynamics)
surroundings
Molality
carbohydrates
flouride

7. Change in moles (An) =?
sublimation
(moles of products that are gasses) - (moles of reactants that are gasses)
mol
log[H+]

8. STP
Acids
Anion
-ic acid
0 degrees C - 1 atm

9. Group 1 - Ammonium - Nitrates - Acetates - Sulfates - Halides
increasing
soluble
exothermic
8.314 J/K mol

10. All cations are soluble with sulfate EXCEPT
Zero-Order Rate Law
triple point
Ag+ - Pb2+ - Hg2+ - Sr2+ - Ca2+ - Ba2+
permanent gases

11. Cation first - anion second
STP
Pressure
Naming Binary Ionic Compounds
Its element

12. Substance that - when dissolved - is conductive
Osmotic Pressure
system
electrolyte
Constant Volume

13. 1/[A] vs. time is a ...-order reaction
second
Molal BP Elevation Constant
supercritical fluid
permanent gases

14. Symbol for the heat absorbed or lost molecularly (PER MOLE)
conjugate acid
Osmotic Pressure
AH
Counterions

15. Planck's constant - used to calculate energy w/frequency
6.63x10?³4Js
Finding Empirical Formulas
Equilibrium constant
entropy

16. If anion ends in -ate - acid name ends in...
red
Van't Hoff factor
-ic acid
Negative work value; work done by system

17. J/°Cmol or J/Kmol
Heisenberg Uncertainty Principle
Molar Heat Capacity
Molal FP Depression Constant
sulfite

18. A solid or gas that can be formed when 2 or more aqueous reactants come together
Le Chatelier's Principle
precipitate
are
Linear

19. 1/[A]=kt + 1/[A]0
supercritical fluid
Dipole-dipole forces
Integrated Second-Order Rate Law
hex-

20. Point at which liquid?gas occurs
boiling point
charge
s
hept-

21. Proton donors
Bronsted-Lowry acid
p orbitals
Entropy (S)
End Point

22. The minimum energy that molecules must possess for collisions to be effective - Ea
1 atm = 760 mmHg = 101.3 kPa
activation energy
1) Convert to moles 2) divide by lowest moles 3) if any halfs - double all values 4) plug into Compound
?Hvap

23. 90° - d^2sp^3
Aufbau Principle
spontaneous
n0
Octahedral

24. The transfer of energy between two objects due to temperature difference
Heat
hydrolysis
Acid Dissociation Constant
Resonance

25. Degree of disorder in a system
A Roman numeral
Cation
entropy (S)
oxalate

26. 0°C and 1 atm
Equilibrium constant
STP
Heat
Hydrogen bonding

27. x can be ignored when % ionization is <5%
Calorimetry
Average KE = 1/2(mass)(average speed of all particles)
5% rule
Increase Temperature

28. Energy required to break a bond
Bond Energy
Volume Metric Flask & Pipet
charge
Endothermic

29. (organics) three carbons
prop-
Solubility Product (Ksp)
s (fourth quantum number)
are not

30. O²?
Aufbau Principle
Zero-Order Half Life
oxide
ammonium

31. Half cell in which oxidation occurs
anode
vaporization
green/yellow
Pauli Exclusion Principle

32. ClO3²?
1) Assume percentages are g (where you have 100 g) 2) convert to moles 3) divide by lowest value 4) plug into compound
chlorate
allotrope
Arrhenius base

33. E=mc^2
Ligand
Theory of Relativity
endless
Hund's Rule

34. Mol/L - concentration of a solution
?Hvap
Heat
Acid Dissociation Constant
Molarity

35. When n=3 ->2 - color=
Linear
chromate
red
methoxy-

36. Symbol for Total Heat absorbed or released
cyanide
Atomic Mass Unit
q
hept-

37. AX3E
trigonal pyramidal
Second-Order Half Life
oxidizing agent
base and hydrogen gas

38. Cr2O7²?
complex ions
Acid + Base --> Salt + Water
dichromate
Ag+ - Pb2+ - Hg2+

39. The driving force for a spontaneous is an increase in entropy of the universe
diamagnetic
Entropy (S)
rate gas A/rate gas B = square root (mm gas B/ mm gas A)
Constant Volume

40. AX5
soluble
0
trigonal bipyramidal
Open System

41. Lowers activation energy
catalyst
Cathode
Equivalence Point
C=(mass)(specific heat)

42. Ideal Gas Law Formula
base
PV=nRT
Cell Potential (Ecell)
lambda

43. If anion ends in -ite - acid name ends in...
rate gas A/rate gas B = square root (mm A/ mm B)
-2 - with peroxide -1
-ous acid
Cell Potential (Ecell)

44. Puts H? into solution
Arrhenius acid
bromate
M1V1=M2V2
8.31J/Kmol

45. ?T=k*m(solute)
Adding
Molal BP Elevation Constant
alkene
conjugate acid

46. The total energy of the universe is constant - all systems tend towards minimum energy
1st law of thermodynamics
Ionic
phosphate
London dispersion forces

47. In a titration - the point where moles of acid are equal to moles of base (just before the indicator changes color)
Equivalence Point
Entropy (S)
rate
# protons + # neutrons

48. AX5
-one
trigonal bipyramidal
-oate
Resonance

49. Tools NEEDED for dilution
Volume Metric Flask & Pipet
are
Acid Dissociation Constant
equilibrium

50. Increase Volume
T-shape
Density
Increase Temperature
effects of IMF