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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. Oxidation # of Oxygen
Adding
P1= X1P1°
-2 - with peroxide -1
2nd law of thermodynamics
2. Elements in groups 3-12
Transition metals
ln (k1/k2) = (Ea/R)(1/T2-1/T1)
conjugate acid
bent
3. Pressure Units/Conversions
triple point
paramagnetic
iodide
1 atm = 760 mmHg = 101.3 kPa
4. Ionizes to produce H+ ions
Arrhenius Acid
Its element
Electronegativity
endothermic
5. Everything in the universe that is not defined by you as part of the system
Surroundings
oct-
Net Ionic Equation
permanent gases
6. (organics) ten carbons
dec-
condensation
Root Mean Square Velocity
yellow
7. Energy can't be created nor destroyed
Molarity
Law of Conservation of Energy
group
Finding Empirical Formulas
8. NO2¹?
first
Root Mean Square Velocity
Formal Charge
nitrite
9. The measurement of heat changes
Volt
purple
Calorimetry
Bases
10. In ideal gas law problem - when it says "atmospheric" ...
Pressure of H2O must be Subtracted
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
s (fourth quantum number)
Increase Temperature
11. Electron pairs found in the space between the atoms
Hund's Rule
cyanide
deposition
Bonding Pairs
12. Significant Digits of Conversion Factors
96500
no precipitate forms
endless
Faraday
13. AH of formation for a substance in its stablest form (how it is found in nature)
cyanide
flouride
0
Alpha Particles-
14. 101 -325 Pa
experimental yield
Naming Binary Ionic Compounds
Atmospheric Pressure
1atm=?Pa
15. Change in Energy (AE) = ? (in terms of work)
1) multiply each AMU by the percentage that represents that isotopes occurrence in nature 2) then add all the AMUs together.
AE = q + w
different # of neutrons
Reducing Agent
16. Actual Yield/Theoretical Yield*100%
Bond Order
like
Percent Yield
d
17. Mass percent
g solute/g solvent x 100
1) Assume percentages are g (where you have 100 g) 2) convert to moles 3) divide by lowest value 4) plug into compound
Valence Electrons(assigned)
red
18. AX4E2
Naming Binary Ionic Compounds
Delta H or Enthalpy Change
square planar
Molarity
19. pH=
triple bond
nitrate
log[H+]
precipitate
20. CrO4²?
titrant buret
Normality
First-Order Half Life
chromate
21. Calculation from K to C
Ag+ - Pb2+ - Hg2+ - Sr2+ - Ca2+ - Ba2+
C=(mass)(specific heat)
C + 273
complex ions
22. A given compound always has exactly the same proportion of elements by mass
Monoprotic
Law of Definite Proportion
supercritical fluid
Magnetic Quantum Number (ml)
23. Unit of electrical potential; J/C
-1
Speed of light
Volt
acetate
24. Determined by the formula h/m(in kg)v - (v=velocity)
blue-violet
wavelength
green/yellow
?Hvap
25. Significant Digits of counted things
endless
Exothermic
M1V1=M2V2
voltaic cells
26. When n=4 ->2 - color=
0
blue-green
tetrahedral
Pi Bond
27. If anion ends in -ide - acid name ends in
Law of Conservation of Mass
hydro-ic acid
lambda
Isotopes
28. SO3²?
purple --> pink
sulfite
diamagnetic
1 atm = 760 mmHg = 101.3 kPa
29. (organics) six carbons
hex-
melting point
heat of vaporization
A Roman numeral
30. ClO2¹?
trigonal bipyramidal
paramagnetic
e-
chlorite
31. ln[A] vs. time is a ...-order reaction
pi=(nRT)/v
first
spontaneity
like
32. All cations are soluble with bromide - chloride and iodide EXCEPT
spontaneity
-(P)(Change in V)
Ag+ - Pb2+ - Hg2+
paramagnetic
33. Phase change from solid to gas
Ionic
Acid Dissociation Constant
sublimation
Colligative properties
34. Compound in which there is a bond between two non-metals; when naming them you use the numerical prefixes (may NOT be reduced i.e. S2F4 may not become SF2)
Enthalpy of Solution
Bond Energy
Ionic Compounds
methods of increasing rate
35. K=[C]^l[D]^m/[A]^j[B]^k; products/reactants; solids don't count
Equilibrium Expression
high pressure - low temperature
Oxidizing Agent
Dalton's Law of Partial Pressures
36. IMF that exists in polar molecules
period
First-Order Rate Law
meth-
Dipole-dipole forces
37. Liquid to gas
0
Molal BP Elevation Constant
vaporization
meth-
38. Ptotal=P1+P2+P3+...
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on line
183
39. n+m (these are orders of reactants)
CAT
Overall Reaction Order
Constant Volume
adhesion
40. Heat needed to change 1 g of substance to 1°C
specific heat
bond energy
work
reduction
41. The line running between the atoms
1) Convert to moles 2) divide by lowest moles 3) if any halfs - double all values 4) plug into Compound
Faraday
Nodes
Sigma Bond
42. Energy required for liquid?gas
0
salt bridge
base
heat of vaporization
43. The reactant in the reduction reaction that forces the oxidation reaction to occur
Anion
Oxidizing Agent
Acid + Base --> Salt + Water
bromate
44. Happens at lines in phase change charts
E
equilibrium
Endothermic
Monoprotic
45. Type of system in which the energy and mass may leave or enter
n (first quantum number)
high pressure - low temperature
Open System
Bronsted-Lowry acid
46. Spectrum of light when an electron drops to energy level n=2
Q>K
surroundings
cyanide
Balmer Series
47. Raising heat - adding catalyst - heighten concentration - bigger surface area
supercritical fluid
Reducing Agent
methods of increasing rate
Anode
48. Substances above the critical temperature and pressure in which the pressure is so high that density and flowing ability of a "gas" resembles that of a liquid
reduction
Law of Multiple Proportions
supercritical fluid
Volt
49. C=2.9979*10^8 m/s
Q>K
Speed of light
Q<K
hydro-ic acid
50. Temperature-pressure point after which gas can no longer form liquid
critical point
triple point
Equilibrium constant
Formal Charge