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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. How to Find an Empirical Formula Given Percentages
effects of IMF
double bond
pi=(nRT)/v
1) Assume percentages are g (where you have 100 g) 2) convert to moles 3) divide by lowest value 4) plug into compound

2. Combined Gas Law Formula
Specific Heat (s)
-(P)(Change in V)
P1V1/N1T1=P2V2/N2T2
ln (k1/k2) = (Ea/R)(1/T2-1/T1)

3. I¹?
Dipole Moment
iodide
l (second quantum number)
group

4. States molecules at a given temp. vary in kinetic energy along a bell-curve of molecular velocities
Molal BP Elevation Constant
Octahedral
Boltzmann distribution
Bond enthalpy

5. 90°&120° - dsp^3
van't Hoff Factor
Trigonal Bipyramidal
base
complex ions

6. Vapor pressure lowering - boiling point elevation - freezing point depression - osmotic pressure
LE Model
Colligative properties
Buffer
carbonate

7. Neutralization Reaction (general format) (net ionic of which is always (H+) + (OH-) --> (H2O))
Acid + Base --> Salt + Water
single bond
Delta H or Enthalpy Change
1 atm = 760 mmHg = 101.3 kPa

8. Specific heat of water
4.184
C=(mass)(specific heat)
0
Law of Conservation of Energy

9. Like dissolves...
entropy
like
equivalence point
Ag+ - Pb2+ - Hg2+ - Sr2+ - Ca2+ - Ba2+

10. Proton (symbol)
1) multiply each AMU by the percentage that represents that isotopes occurrence in nature 2) then add all the AMUs together.
zero
p+
Theoretical yield

11. Kinetic Energy is proportional to ______
-oic acid
Temperature
Anion
1) Convert to moles 2) divide by lowest moles 3) if any halfs - double all values 4) plug into Compound

12. 6.022x10^23
Cg=kPg
Bonding Pairs
mol
Heisenberg Uncertainty Principle

13. Substances above the critical temperature and pressure in which the pressure is so high that density and flowing ability of a "gas" resembles that of a liquid
supercritical fluid
vaporization
sulfate
equivalence point

14. A monoatomic anion is named by taking...
p orbitals
reduction agent
Bond Energy
Its root and adding -ide

15. Reactant that's completely used up in a chemical reaction
CAT
Theory of Relativity
Hund's Rule
Limiting reactant

16. The actual amount of product produced in an experiment
Dalton's Law of Partial Pressures
Solubility Product (Ksp)
experimental yield
End Point

17. In ideal gas law problem - when it says "atmospheric" ...
Pressure of H2O must be Subtracted
r1/r2
Aufbau Principle
purple --> pink

18. Kinetic Energy of an individual particle formula
Average KE = 1/2(mass)(average speed of all particles)
Constant Pressure
Equivalence Point
M = square root (3RT/mm)

19. Elements in groups 3-12
Ampere
t-shape
Transition metals
-2 - with peroxide -1

20. l=0
Valence Electrons(assigned)
actual yield/theoretical yield x 100%
+1 - except if bonded to Alkali Metal -1
s

21. A neutral molecule/ion having a lone e- pair that can be used to form a bond to a metal ion
hydrolysis
octahedral
Pressure
Ligand

22. AX2E - AX2E2
bent
seesaw
Molality
Joule

23. Isotope
boiling point
Trigonal Planar
Volt
different # of neutrons

24. Gas to solid
deposition
Specific Heat Capacity
0.0826Latm/Kmol
H2 - F2 - N2 - O2 - Cl2 - Br2 - I2

25. Compound in which there is a bond between two non-metals; when naming them you use the numerical prefixes (may NOT be reduced i.e. S2F4 may not become SF2)
effects of IMF
Ionic Compounds
paramagnetic
Ideal Gas Law

26. Energy required for melting to occur
8.31J/Kmol
activation energy
heat of fusion
entropy (S)

27. Tools NEEDED for dilution
Volume Metric Flask & Pipet
Molecule
H2 - F2 - N2 - O2 - Cl2 - Br2 - I2
(moles of products that are gasses) - (moles of reactants that are gasses)

28. AX2 - AX2E3
catalyst
linear
blue-violet
Quantum Mechanical Model

29. Reactant which doesn't get used up completely in a chemical reaction
P1V1/N1T1=P2V2/N2T2
Electronegativity
excess reactant
Hund's Rule

30. Puts H? into solution
Arrhenius acid
p
Net Ionic Equation
Isotopes

31. Energy involved in gaining an electron to become a negative ion
Alpha Particles-
Allotrope
red/orange
electron affinity

32. To find activation energy use the...
Arrhenius equation
hydroxide
mol Fraction
Anion

33. 1/([A]0*k)
Second-Order Half Life
are not
4.184
Amino-

34. Driving force of the electrons
Cell Potential (Ecell)
Acid + Base --> Salt + Water
square pyramidal
t-shape

35. neutron (symbol)
mol Fraction
spontaneous
n0
soluble

36. A measure of randomness or disorder
1) multiply each AMU by the percentage that represents that isotopes occurrence in nature 2) then add all the AMUs together.
Polar Covalent
red/orange
entropy

37. Delta H (AH) = ?
Theoretical yield
M1V1=M2V2
q/moles
but-

38. BrO3¹?
(moles of products that are gasses) - (moles of reactants that are gasses)
Molecule
Arrhenius Acid
bromate

39. A solution that resists a change in its pH
Temperature
+1 - except if bonded to Alkali Metal -1
Buffered Solution
dec-

40. Has values 1 -2 -3 -...; tells energy levels
Principal Quantum Number
Van't Hoff factor
v3RT/M(in kg)
rate gas A/rate gas B = square root (mm A/ mm B)

41. (organics) one carbon
Equivalence Point
Heat Capacity (C)
1.38x10?²³J/K
meth-

42. Molecules' tendency to stick to the container
l (second quantum number)
Solubility Product (Ksp)
yellow
adhesion

43. (organics) five carbons
p+
Bond Order
pent-
-ol

44. When n=4 ->2 - color=
blue-green
Equivalence Point
3.0x108m/s
Molecule

45. Change without heat transfer between the system and its surroundings
adiabatic
H
g solute/g solvent x 100
paramagnetic

46. Equation to find Ea from reaction rate constants at two different temperatures
ln (k1/k2) = (Ea/R)(1/T2-1/T1)
weak acid strong base rxn
Aufbau Principle
endless

47. 1 sigma bond
Specific Heat Capacity
van't Hoff Factor
single bond
Alpha Particles-

48. Formula used when diluting stock solution (to find amount of water or stock needed)
Law of Conservation of Mass
M1V1=M2V2
p orbitals
reduction

49. AX3E
trigonal pyramidal
methods of increasing rate
rate law
Amino-

50. When n=6 ->2 - color=
Law of Multiple Proportions
Le Chatelier's Principle
seesaw
violet