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Test your basic knowledge |
AP Chemistry
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Subjects
:
science
,
ap
,
chemistry
Instructions:
Answer 50 questions in 15 minutes.
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study here
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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. A method of investigation involving observation and theory to test scientific hypotheses
yellow
Scientific Method
Quantum Model
1) Assume percentages are g (where you have 100 g) 2) convert to moles 3) divide by lowest value 4) plug into compound
2. Amount of heat needed to change a system by 1°C
endless
Arrhenius acid
Bonding Pairs
heat capacity
3. (organics) double-bonded compound
-1
Counterions
alkene
conjugate acid
4. 0°C and 1 atm
Arrhenius Acid
Acid + Base --> Salt + Water
STP
End Point
5. CO3²?
6.63x10?³4Js
5% rule
8.31J/Kmol
carbonate
6. When n=6 ->2 - color=
Equivalence Point
Molarity
blue-green
violet
7. Mixing of gases
linear
sulfate
Diffusion
force x distance = work done
8. Theoretical yield-experimental yield/theoretical yieldx100
% error
bond energy
cathode
Entropy (S)
9. Group 1 - Ammonium - Nitrates - Acetates - Sulfates - Halides
Barometer
soluble
hept-
strong bases
10. S²?
green/yellow
sulfide
oxidizing agent
actual yield/theoretical yield x 100%
11. Average speed of gas
Decrease Volume and Increase Temperature
v3RT/M(in kg)
Molar Heat Capacity
8.314 J/K mol
12. 2+ charge
1 atm = 760 mmHg = 101.3 kPa
Trigonal Planar
Alpha Particles-
Osmotic Pressure
13. 1 sigma bond - 1 pi bond
0 degrees C - 1 atm
double bond
n0
oxide gas and water
14. Substances that form H+ when dissolved in water; proton donors
blue-green
Theory of Relativity
Acids
Heat
15. The reactant that is being oxidized - brings about reduction
adiabatic
Ideal Gas Law
reduction agent
Hess's Law
16. Molality =
Scientific Method
moles solute/kg solvent
hydrolysis
Bonding Pairs
17. The likelihood that a rxn will occur "by itself"
hydro-ic acid
sublimation
Bronsted-Lowry Base
spontaneity
18. Calculation from K to C
-(q of H2O + q of cal)
Bonding Pairs
C + 273
base and hydrogen gas
19. kb of water
oxidizing agent
Multiplying
d orbitals
0.512°C
20. Color of Cs (flame test)
% error
melting point
adiabatic
blue
21. In covalent bonds - prefixes are used to tell...
strong bases
Amount of atoms present
effects of IMF
LeChatelier's Principle
22. Unit of electrical potential; J/C
?Hvap
dec-
Volt
LE Model
23. Metal oxide + H20 ->
Negative work value; work done by system
base
STP
oxide gas and water
24. Type of system in which the energy and mass may leave or enter
Ag+ - Pb2+ - Hg2+
t-shape
Cg=kPg
Open System
25. Energy needed to vaporize a mole of a liquid
Molality
?Hvap
allotrope
Overall Reaction Order
26. Point where acid completely neutralizes base
hex-
excess reactant
equivalence point
-ous acid
27. [A] vs. time is a ...-order reaction
zero
Integrated Second-Order Rate Law
insoluble
Osmotic Pressure
28. Heat capacity formula
C=(mass)(specific heat)
alkene
Pauli Exclusion Principle
nitrate
29. A device in which chemical energy is changed to electrical energy
oct-
Galvanic Cell
First-Order Rate Law
Open System
30. frequency symbol
n (first quantum number)
Molarity
reduction agent
nu
31. Energy required to break a bond
Zero-Order Rate Law
Bond Energy
Decrease Volume and Increase Temperature
oxidizing agent
32. Polyatomic Ions (bonding)
van't Hoff Factor
Arrhenius Acid
Covalently w/in themselves - Ionicly bonded w/ each other
mol Fraction
33. The part of the universe one is focused upon (in thermodynamics)
Valence Electrons(assigned)
condensation
system
freezing
34. Energy can't be created nor destroyed
pent-
Adding
Law of Conservation of Energy
spontaneous
35. AX2 - AX2E3
chlorate
Molarity
?Tb= kb x molality
linear
36. CrO4²?
blue-violet
Speed of light
chromate
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
37. The reactant in the reduction reaction that forces the oxidation reaction to occur
acetate
insoluble
yellow --> green
Oxidizing Agent
38. Matter can't be created nor destroyed
spontaneous
Law of Conservation of Mass
oxalate
pi=(nRT)/v
39. Bond bond in which atoms aren't so different that electrons are completely transferred but are different enough that unequal sharing occurs
catalyst
square pyramidal
Polar Covalent
Acids
40. Effusion of a gas is inversely proportional to the square root of the molar mass
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183
41. (A) - C/s
Ampere
0
no precipitate forms
paramagnetic
42. Assumes that a molecule is composed of atoms that are bound together by sharing pairs of electrons using the atomic orbitals of the bound atoms
LE Model
Aufbau Principle
linear
flouride
43. Elements in groups 3-12
trigonal pyramidal
Transition metals
Bronsted-Lowry acid
# protons (atom is defined by this)
44. The energy required to raise 1 g of substance 1 degree C
Specific Heat (s)
Weight
endless
single bond
45. Color of Ca (flame test)
q/moles
red/orange
t-shape
Thermochemistry
46. Half cell in which oxidation occurs
second
red
anode
Transition metals
47. These orbitals are diagonal
STP
d orbitals
Cell Potential (Ecell)
hex-
48. Point at which liquid?gas occurs
AE = q + w
Molal BP Elevation Constant
% yield
boiling point
49. Boiling point - melting point - viscosity - vapor pressure - surface tension
Dalton's Law
Constant Volume
lambda
effects of IMF
50. The minimum energy that molecules must possess for collisions to be effective - Ea
1atm=?Pa
deposition
seesaw
activation energy
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