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Test your basic knowledge |
AP Chemistry
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Study First
Subjects
:
science
,
ap
,
chemistry
Instructions:
Answer 50 questions in 15 minutes.
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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. Where oxidation occurs
Pressure of H2O must be Subtracted
Sigma Bond
amine
Anode
2. A single substance that may be an acid or a base (i.e. water)
London dispersion forces
Amphoteric
trigonal planar
period
3. Substance that - when dissolved - is conductive
not spontaneous
melting point
electrolyte
Specific Heat (s)
4. Entropy in the universe is always...
oxidizing agent
oxalate
carbonate
increasing
5. K
phosphate
wavelength
Equilibrium constant
strong bases
6. Anything occupying space and with mass
Matter
activated complex (transition state)
AH rxn = (Sum of AH of formation of products) - (Sum of AH of formation of reactants)
Heat Capacity (C)
7. The mixing of native atomic orbitals to form special orbitals for bonding
Hybridization
square planar
Entropy (S)
CAT
8. Heat required to raise the system 1°C
oxide
heat capacity
permanganate
Barometer
9. In a given atom no two electrons can have the same set of four quantum numbers
s
triple bond
Pauli Exclusion Principle
0
10. C2H3O2¹?
0
specific heat
voltaic cells
acetate
11. 1/([A]0*k)
Temperature
0
+1 - except if bonded to Alkali Metal -1
Second-Order Half Life
12. Average Kinetic Energy Formula
Ionic
Scientific Method
freezing
Average KE = 1/2(mass)(average speed of all particles)
13. Carbon & hydrogen compounds
Beta Particles-
Q>K
hydrocarbons
Amino-
14. Positive enthalpy - heat flows into system
endothermic
0
m (third quantum number)
msAT
15. Type of system in which the energy may escape - but the mass is conserved
oxidizing agent
Closed System
Anode
flouride
16. Formula used when diluting stock solution (to find amount of water or stock needed)
Bond Energy
M1V1=M2V2
(moles of products that are gasses) - (moles of reactants that are gasses)
triple bond
17. Variable for type of orbital
oxide gas and water
C + 273
Diffusion
l (second quantum number)
18. n+m (these are orders of reactants)
Zero-Order Half Life
Law of Multiple Proportions
M1V1=M2V2
Overall Reaction Order
19. The chemical formed when a base accepts a proton
Faraday
perchlorate
third
conjugate acid
20. The entropy of a pure perfectly formed crystal @0K is 0
Bronsted-Lowry acid
Arrhenius Acid
3rd law of thermodynamics
Ag+ - Pb2+ - Hg2+ - Sr2+ - Ca2+ - Ba2+
21. A monoatomic cation takes name from...
Amphoteric
Its element
Ampere
First-Order Rate Law
22. Atoms combine in fixed whole # ratios
Molar Mass of Element/ Total Molar Mass %
Increase Temperature
Finding Empirical Formulas
Law of Multiple Proportions
23. All forms of energy except for heat
work
5% rule
Law of Conservation of Mass
Trigonal Planar
24. 1.Calculate moles of each atom in molecule 2.Divide each mole number by smallest mole number 3.If necessary - multiply every mole number to get a whole number 4.Moles of each atom is subscript in empirical formula
Volume Metric Flask & Pipet
?Hvap
?Tb= kb x molality
Finding Empirical Formulas
25. Half cell in which reduction occurs
yellow --> green
k=Ae^(-Ea/RT)
Heat Capacity (C)
cathode
26. % yield
actual yield/theoretical yield x 100%
Gamma Ray-
methoxy-
Volt
27. Only contains ions that change in reaction
Arrhenius equation
pi=(nRT)/v
Net Ionic Equation
Bronsted-Lowry base
28. When gas expands ...
base and hydrogen gas
1 atm
second
Negative work value; work done by system
29. A method of investigation involving observation and theory to test scientific hypotheses
PEACe 1)each molecule is a Point in space 2)Elastic collisions 3) no force of Attraction 4) no energy lost or gained to Collisions
deposition
Scientific Method
Molality
30. A solution that resists a change in pH - contains both a weak acid and its conjugate base
alkyne
prop-
Open System
Buffer
31. Universal IMF for nonpolar molecules
wavelength
London dispersion forces
q
excess reactant
32. Equation to find Ea from reaction rate constants at two different temperatures
Monoprotic
ln (k1/k2) = (Ea/R)(1/T2-1/T1)
s (fourth quantum number)
indicator
33. 96 -485 C/mol e-
+1 - except if bonded to Alkali Metal -1
Faraday
spontaneity
p+
34. Colors of Reaction when (MnO4 -) --> (Mn2+)
T-shape
purple --> pink
Trigonal Planar
Resonance
35. [A]=-kt + [A]0
Pressure of H2O must be Subtracted
hept-
heat capacity
Integrated Zero-Order Rate Law
36. kf of water
P of a =(X of a)(total pressure)
1.86°C
Molecular
-(q of H2O + q of cal)
37. Atomic #
hex-
# protons (atom is defined by this)
violet
experimental yield
38. All _________ compounds are electrolytes
Pressure of H2O must be Subtracted
Ionic
e-
Atmospheric Pressure
39. Everything in the universe that is not defined by you as part of the system
blue-violet
Surroundings
Coordination Compound
5% rule
40. Amount of product produced when limiting reactant is used up
Trigonal Bipyramidal
q/moles
Theoretical yield
f
41. 90°&120° - dsp^3
Trigonal Bipyramidal
bromate
soluble
r1/r2
42. Freezing point depression formula
P1= X1P1°
?Tf= kf x molality
Cation
Gamma Ray-
43. Newton's Second Law
sulfite
freezing
chlorite
Force = mass x acceleration
44. A given compound always has exactly the same proportion of elements by mass
Ionic Compounds
Law of Definite Proportion
Zero-Order Rate Law
Equivalence Point
45. The reactant in the reduction reaction that forces the oxidation reaction to occur
Cell Potential (Ecell)
6.63x10?³4Js
Oxidizing Agent
cohesion
46. NO2¹?
Covalently w/in themselves - Ionicly bonded w/ each other
nitrite
Linear
yellow
47. MnO4¹?
Normality
permanganate
Arrhenius acid
electron affinity
48. Ionizes to produce H+ ions
Arrhenius Acid
Law of Definite Proportion
Kinetic Molecular Theory - for ideal gases
Amphoteric
49. HF+ OH??H2O
weak acid strong base rxn
1) Assume percentages are g (where you have 100 g) 2) convert to moles 3) divide by lowest value 4) plug into compound
AE = q + w
Pauli Exclusion Principle
50. Puts H? into solution
Arrhenius acid
Electron Spin Quantum Number
freezing
high pressure - low temperature
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