Test your basic knowledge |

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. Carbon - hydrogen - oxygen compounds
group
Second-Order Rate Law
q
carbohydrates

2. ?Hsoln=?H1+?H2+?H3+...
Equilibrium Expression
Enthalpy of Solution
heat of fusion
AE = q + w

3. 6.022x10^23
Oxidizing Agent
mol
?Hvap
no precipitate forms

4. Anions or cations as needed to produce a compound with non net charge
electron affinity
M1V1=M2V2
Transition metals
Counterions

5. Amount of gravitational force exerted on an object
Average KE = 1/2(mass)(average speed of all particles)
Weight
-ic acid
Arrhenius Base

6. Gas to solid
hydroxide
insoluble
strong bases
deposition

7. (organics) four carbons
titrant buret
log[H+]
but-
Octahedral

8. Theoretical yield-experimental yield/theoretical yieldx100
% error
Strong acid weak base rxn
nu
Delta H or Enthalpy Change

9. In a titration - the point where the indicator changes (just after moles of solid are equal to moles of base)
moles solute/kg solvent
Quantum Model
Sigma Bond
End Point

10. AX3E
p+
Molality
Solution
trigonal pyramidal

11. AX2E - AX2E2
isothermal
Surroundings
bent
Calorimeter

12. Point at which solid?liquid occurs
second
AE = q + w
melting point
-ous acid

13. C2H3O2¹?
State Functions
1 atm
acetate
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

14. Mass/volume
Density
Acid Dissociation Constant
purple --> pink
Le Chatelier's Principle

15. Everything in the universe that is not defined by you as part of the system
Volt
Surroundings
charge
1 atm = 760 mmHg = 101.3 kPa

16. Ka=[products]^m/[reactants]^n
Entropy (S)
hydro-ic acid
London dispersion forces
Acid Dissociation Constant

17. Kinetic Energy of an individual particle formula
Theory of Relativity
insoluble
M = square root (3RT/mm)
perchlorate

18. How to Balance a Redox Equation
Q>K
Acid Dissociation Constant
Root Mean Square Velocity
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

19. Carbonates - Hydroxides - Oxides - Phosphates - Sulfides
Alpha Particles-
Bases
insoluble
Molar Heat Capacity

20. Colors of Reaction when (MnO4 -) --> (Mn2+)
high pressure - low temperature
H
titrant buret
purple --> pink

21. R=
0.0826Latm/Kmol
Calorimeter
Boltzmann distribution
hydro-ic acid

22. All (though really not all - but for our purposes all) ________ compounds are NOT electrolytes
Colligative properties
p+
Oxidizing Agent
Molecular

23. AX5
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
Coordination Compound
prop-
trigonal bipyramidal

24. Organic reaction in which two functional groups come together - resulting in the release of water
Density
chromate
condensation
eth-

25. ClO3²?
insoluble
cathode
chlorate
sublimation

26. Amount of heat needed to change a system by 1°C
e-
heat capacity
AH rxn = (Sum of AH of formation of products) - (Sum of AH of formation of reactants)
# protons + # neutrons

27. A homogeneous mixture with 1 phase
?Tf= kf x molality
Bond enthalpy
Solution
Hydrogen bonding

28. Ketone suffix
carbohydrates
-one
-1
LE Model

29. ?H when 1 mol of bonds is broken in the gaseous state
C=(mass)(specific heat)
Bond enthalpy
red
analyte

30. If Q<Ksp
v3RT/M(in kg)
Valence Electrons(assigned)
adhesion
no precipitate forms

31. Boltzmann constant - used in calculating speed of gas per molecule
1.38x10?²³J/K
Bases
Multiplying
paramagnetic

32. A device in which chemical energy is changed to electrical energy
triple bond
Galvanic Cell
Metalliods
?Tf= kf x molality

33. Bomb Calorimeter
22.4L
Constant Volume
Q<K
Nernst Equation

34. Actual Yield/Theoretical Yield*100%
phosphate
Percent Yield
strong acids
1) multiply each AMU by the percentage that represents that isotopes occurrence in nature 2) then add all the AMUs together.

35. The actual amount of product produced in an experiment
trigonal bipyramidal
experimental yield
Integrated Rate Law
Bases

36. Mols A/ total mols - XA
Exothermic
# protons (atom is defined by this)
mol Fraction
Aufbau Principle

37. Horizontals on the periodic table
period
London dispersion forces
5% rule
0

38. Measure of the change in enthalpy
heat capacity
Molar Mass of Element/ Total Molar Mass %
M = square root (3RT/mm)
Delta H or Enthalpy Change

39. Positive ion
Diffusion
t-shape
Cation
vapor pressure

40. In ideal gas law problem - when it says "atmospheric" ...
Law of Conservation of Mass
msAT
A Roman numeral
Pressure of H2O must be Subtracted

41. Formula used when diluting stock solution (to find amount of water or stock needed)
1atm=?mmHg/Torr
d orbitals
Ag+ - Pb2+ - Hg2+
M1V1=M2V2

42. Amount of product produced when limiting reactant is used up
Theoretical yield
Quantum Mechanical Model
but-
Solute

43. Unit of electrical potential; J/C
Colligative properties
Percent Yield
Volt
conjugate acid

44. Carbon & hydrogen compounds
hydrocarbons
Heat
surroundings
charge

45. Change that occurs at constant temperature
isothermal
?Tb= kb x molality
octahedral
Trigonal Bipyramidal

46. Entropy in the universe is always...
Trigonal Bipyramidal
increasing
Molecular Orbitals (MOs)
actual yield/theoretical yield x 100%

47. Newton's Second Law
Force = mass x acceleration
seesaw
Alkali metals
Law of Conservation of Mass

48. Force per unit area
sulfite
Ag+ - Pb2+ - Hg2+ - Sr2+ - Ca2+ - Ba2+
Pressure
heat capacity

49. Donates a single H+ Ion (... other prefixes also)
% error
Hybridization
octahedral
Monoprotic

50. Symbol for Total Heat absorbed or released
exothermic
Bond Energy
Open System
q