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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. Dirrect Method Formula
reduction
AH rxn = (Sum of AH of formation of products) - (Sum of AH of formation of reactants)
g solute/g solvent x 100
complex ions
2. Variable for type of orbital
Theory of Relativity
l (second quantum number)
Covalently w/in themselves - Ionicly bonded w/ each other
Effusion
3. (# of lone pair e-)+1/2(# of shared e-)
allotrope
Enthalpy of Solution
Trigonal Planar
Valence Electrons(assigned)
4. IMF that occurs with FON
Effusion
?Hvap
Hydrogen bonding
spontaneous
5. Energy needed to vaporize a mole of a liquid
?Tf= kf x molality
Hund's Rule
?Hvap
Reducing Agent
6. Energy required to break a bond
Bases
X of a = moles a/total moles
Bond Energy
moles solute/kg solvent
7. Henry's Law - solubility of gases is directly proportional to the partial pressure of the gas
+1 - except if bonded to Alkali Metal -1
yellow
vapor pressure
Cg=kPg
8. Symbol for Total Heat absorbed or released
Theoretical yield
p+
Ionic
q
9. A solid or gas that can be formed when 2 or more aqueous reactants come together
sulfate
precipitate
strong bases
actual yield/theoretical yield x 100%
10. Composition Formula
red
Diffusion
Molar Mass of Element/ Total Molar Mass %
(moles of products that are gasses) - (moles of reactants that are gasses)
11. (organics) triple-bonded compound
Constant Volume
alkyne
Diffusion
Calorimeter
12. (organics) three carbons
Pauli Exclusion Principle
prop-
fusion
exothermic
13. Larger molecules which have higher mass and therefore electron density have stronger...
London dispersion forces
n (first quantum number)
Formal Charge
Net Ionic Equation
14. To find activation energy use the...
blue-violet
Arrhenius equation
sublimation
Overall Reaction Order
15. AX5
Overall Reaction Order
trigonal bipyramidal
Molecular Compounds
Constant Pressure
16. Faraday's constant
Bond Order
Adding
96500
p+
17. Colors of Reaction when (Cr2O7 2-) --> (Cr 3+)
hydrolysis
yellow --> green
green/yellow
Octahedral
18. Heat required to raise the system 1°C
Molarity
heat capacity
boiling point
Zero-Order Half Life
19. The weighted average of all the isotopes that an atom can have (in g/mol)
Thermochemistry
N=N.(0.5)^time/time half-life
alkyne
Atomic Mass Unit
20. Carbon - hydrogen - oxygen compounds
Standard Temperature and Pressure
Coordination Compound
Joule
carbohydrates
21. ln[A] vs. time is a ...-order reaction
Amount of atoms present
first
Equilibrium Expression
diamagnetic
22. For colligative properties for electrolytes - the # of mols of ions/ mols of solute
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23. 90° - d^2sp^3
Arrhenius equation
Octahedral
Bond enthalpy
1) multiply each AMU by the percentage that represents that isotopes occurrence in nature 2) then add all the AMUs together.
24. Point at which liquid?gas occurs
deposition
boiling point
dichromate
rate
25. Gain of electrons - decrease in oxidation #
reduction
complex ions
Bronsted-Lowry Acid
single bond
26. Raising heat - adding catalyst - heighten concentration - bigger surface area
Aufbau Principle
Force = mass x acceleration
methods of increasing rate
triple point
27. ClO2¹?
Octahedral
2nd law of thermodynamics
chlorite
Galvanic Cell
28. Amount of gravitational force exerted on an object
log[H+]
Bronsted-Lowry Base
First-Order Rate Law
Weight
29. All forms of energy except for heat
22.4L
work
Bronsted-Lowry acid
Buffered Solution
30. HCl - HBr - HI - HNO3 - HClO4 - H2SO4
strong acids
complex ions
Its element
Balmer Series
31. Phase change from gas to solid
22.4L
deposition
sublimation
force x distance = work done
32. 2 or more covalently bonded atoms
Molecule
Alkaline earth metals
Metalliods
sulfide
33. Pairs of electrons localized on an atom
M1V1=M2V2
Lone Pair
nitrate
Isotopes
34. 1.Volume of individual particles can be assumed to be zero 2.The particles are in constant motion - which causes pressure 3.Particles exert no forces on each other 4.The average kinetic energy of the particles is directly affected by temperature(K)
Acid + Base --> Salt + Water
Solute
Beta Particles-
Kinetic Molecular Theory - for ideal gases
35. Moles of solute/volume of soln(L)
System
Molarity
violet
oxidation
36. Reactant that's completely used up in a chemical reaction
Limiting reactant
oct-
triple point
nu
37. The entropy of a pure perfectly formed crystal @0K is 0
Dalton's Law of Partial Pressures
Arrhenius acid
3rd law of thermodynamics
square planar
38. [A]0/2k
Zero-Order Half Life
voltaic cells
Atomic Mass Unit
mol
39. Organic w/ -OH group
Dalton's Law
?Tb= kb x molality
Cation
alcohol
40. Oxidation # of Halogens
rate
deposition
Bronsted-Lowry Base
-1
41. Matter can't be created nor destroyed
lambda
amine
Law of Conservation of Mass
Valence Electrons(assigned)
42. States molecules at a given temp. vary in kinetic energy along a bell-curve of molecular velocities
Boltzmann distribution
Solubility Product (Ksp)
Cathode
Closed System
43. NH4¹?
ammonium
Equilibrium Expression
p orbitals
?Tf= kf x molality
44. Raoult's Law - relations between vapor pressure and concentrations
ionic
base and hydrogen gas
Acid + Base --> Salt + Water
P1= X1P1°
45. r=k[A]^2
Second-Order Rate Law
1atm=?mmHg/Torr
Law of Multiple Proportions
Hybridization
46. High-energy light
effects of IMF
Gamma Ray-
Arrhenius base
solid CO2
47. 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
Its root and adding -ide
catalyst
Manometer
Finding Empirical Formulas
48. Carbon & hydrogen compounds
hydrocarbons
CAT
Cell Potential (Ecell)
q
49. Substance that - when dissolved - is conductive
Finding Empirical Formulas
Alpha Particles-
Theoretical yield
electrolyte
50. q rxn = ?
-(q of H2O + q of cal)
Law of Conservation of Mass
high pressure - low temperature
s