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Test your basic knowledge |
AP Chemistry
Start Test
Study First
Subjects
:
science
,
ap
,
chemistry
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
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. Different form of same element
Radioactivity
End Point
London dispersion forces
allotrope
2. Bond bond in which atoms aren't so different that electrons are completely transferred but are different enough that unequal sharing occurs
Polar Covalent
N=N.(0.5)^time/time half-life
Molecular Compounds
Entropy (S)
3. 2 or more covalently bonded atoms
H
activated complex (transition state)
viscosity
Molecule
4. Electron pairs found in the space between the atoms
Bonding Pairs
hex-
wavelength
Its root and adding -ide
5. =vM2/M1
specific heat
Pauli Exclusion Principle
r1/r2
Decrease Volume and Increase Temperature
6. Organic reaction in which water breaks apart a molecule (splitting into two hydroxides)
deposition
hydrolysis
Speed of light
Law of Conservation of Energy
7. Point at which solid?liquid occurs
Cell Potential (Ecell)
melting point
Ionic Compounds
titrant buret
8. The reactant in the reduction reaction that forces the oxidation reaction to occur
purple
Thermochemistry
Law of Conservation of Mass
Oxidizing Agent
9. In a given atom no two electrons can have the same set of four quantum numbers
titrant buret
Net Ionic Equation
Pauli Exclusion Principle
Trigonal Bipyramidal
10. Solid to liquid
melting
Molar Heat Capacity
Isotopes
-one
11. Atomic #
charge
Scientific Method
# protons (atom is defined by this)
phosphate
12. Amount of gravitational force exerted on an object
no precipitate forms
cathode
Hydrogen bonding
Weight
13. Positive ion
P of a =(X of a)(total pressure)
Cation
v3kT/m
acid
14. Energy can't be created nor destroyed
adhesion
Heat
Law of Conservation of Energy
experimental yield
15. 1 sigma bond - 2 pi bonds
M1V1=M2V2
?Tf= kf x molality
triple bond
22.4L
16. If Q<Ksp
blue
no precipitate forms
Acids
Limiting reactant
17. All (though really not all - but for our purposes all) ________ compounds are NOT electrolytes
0
Decrease Volume and Increase Temperature
Integrated Second-Order Rate Law
Molecular
18. Organic w/ -NH2
amine
green/yellow
Integrated Second-Order Rate Law
dichromate
19. Releases/gives off heat (negative value)
Ag+ - Pb2+ - Hg2+ - Sr2+ - Ca2+ - Ba2+
Exothermic
C + 273
excess reactant
20. Half cell in which oxidation occurs
Molecular Compounds
supercritical fluid
Temperature
anode
21. Color of Ca (flame test)
red/orange
condensation
are not
Work
22. Arrhenius equation
deposition
k=Ae^(-Ea/RT)
non-
Hydrogen bonding
23. Mass/volume
Zero-Order Half Life
Multiplying
Density
m (third quantum number)
24. In ideal gas law problem - when it says "atmospheric" ...
Zero-Order Half Life
Pressure of H2O must be Subtracted
soluble
Second-Order Half Life
25. Color of Ba (flame test)
green/yellow
hydrocarbons
Percent Yield
Graham's Law
26. U(rms)=(3RT/M)^1/2
Le Chatelier's Principle
Root Mean Square Velocity
Hydrogen bonding
Trigonal Bipyramidal
27. Peak of energy diagram
activated complex (transition state)
different # of neutrons
Amino-
Average KE = 1/2(mass)(average speed of all particles)
28. AX3E
seesaw
Anode
trigonal pyramidal
oxidizing agent
29. Degree of disorder in a system
entropy (S)
increasing
Molarity
no precipitate forms
30. Cr2O7²?
Oxidizing Agent
base and hydrogen gas
Molal FP Depression Constant
dichromate
31. CrO4²?
chlorite
Acids
end point
chromate
32. States molecules at a given temp. vary in kinetic energy along a bell-curve of molecular velocities
Closed System
Molal FP Depression Constant
Boltzmann distribution
Galvanic Cell
33. Neutralization Reaction (general format) (net ionic of which is always (H+) + (OH-) --> (H2O))
Acid + Base --> Salt + Water
AE = q + w
like
blue-violet
34. Liquid to gas
blue-green
condensation
vaporization
voltaic cells
35. 180° - sp
Law of Conservation of Mass
% yield
-1
Linear
36. The likelihood that a rxn will occur "by itself"
spontaneity
0.0821 atm L/mol K
Normality
boiling point
37. AX4E2
oct-
square planar
activated complex (transition state)
Van't Hoff factor
38. STP
Molar Mass of Element/ Total Molar Mass %
0 degrees C - 1 atm
but-
force x distance = work done
39. (organics) triple-bonded compound
solid CO2
adhesion
alkyne
yellow
40. A homogeneous mixture with 1 phase
Kinetic Molecular Theory - for ideal gases
Ampere
Solution
1 atm = 760 mmHg = 101.3 kPa
41. If needed - indicate charge of metal(cation) by...
high pressure - low temperature
A Roman numeral
zero
Polar Covalent
42. Solution used in titration
Pressure of H2O must be Subtracted
0
titrant buret
mol Fraction
43. NH4¹?
ammonium
electrolyte
Alkali metals
Naming Binary Ionic Compounds
44. Molecules' tendency to stick to one another
sublimation
cohesion
+1 - except if bonded to Alkali Metal -1
0.512°C
45. r=k[A]
Sigma Bond
heat capacity
Ideal Gas Law
First-Order Rate Law
46. Oxidation # of Polyatomic Ions
Van't Hoff factor
charge
zero
Diffusion
47. Gas to liquid
AE= AH - RTAn
condensation
trigonal bipyramidal
bond energy
48. Pure metal or metal hydride + H20 ->
critical point
base and hydrogen gas
s
chlorite
49. C2O4²?
AH
+1 - except if bonded to Alkali Metal -1
allotrope
oxalate
50. Instrument used to measure the pressure of a not-atmospheric gas (open or closed system)
Manometer
wavelength
electrolyte
Integrated Zero-Order Rate Law