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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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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. (N) number of equivalents per liter of solution
Hybridization
Normality
Dalton's Law
Chemical Bonds
2. In going from a particular set of reactants to a particular set of products - the change in enthalpy is the same whether the reaction takes place in one step or in a series of steps
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3. Energy required for melting to occur
heat of fusion
deposition
Pi Bond
Calorimetry
4. R in ideal gas law
System
Solution
0.0821 atm L/mol K
Kinetic Molecular Theory - for ideal gases
5. All cations are soluble with bromide - chloride and iodide EXCEPT
Ag+ - Pb2+ - Hg2+
non-
charge
Oxidation is Loss Reduction is Gain
6. 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)
Delta H or Enthalpy Change
Ionic Compounds
red
Volt
7. OIL RIG
Oxidation is Loss Reduction is Gain
Joule
charge
Pauli Exclusion Principle
8. Color of Li (flame test)
?Tf= kf x molality
Reducing Agent
red
Oxidation is Loss Reduction is Gain
9. Idea Gas Law (actual rules)
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
heat of fusion
hydroxide
system
10. The intermolecular attractions resulting from the constant motion of electrons and the creation of instantaneous dipoles
London Dispersion Forces
0
d
Isotopes
11. Change without heat transfer between the system and its surroundings
Solubility Product (Ksp)
adiabatic
endothermic
nitrite
12. If anion ends in -ide - acid name ends in
analyte
Atmospheric Pressure
titrant buret
hydro-ic acid
13. The weighted average of all the isotopes that an atom can have (in g/mol)
Atomic Mass Unit
P1V1/N1T1=P2V2/N2T2
phosphate
r1/r2
14. A monoatomic anion is named by taking...
condensation
Its root and adding -ide
Scientific Method
trigonal planar
15. NO3¹?
titrant buret
purple --> pink
nitrate
-ic acid
16. Solid to gas
sublimation
?Tb= kb x molality
Isotopes
Angular Momentum Quantum Number
17. Chemical composition of dry ice
Equilibrium constant
Trigonal Planar
reduction agent
solid CO2
18. The part of the universe one is focused upon (in thermodynamics)
Molar Heat Capacity
system
4.184
purple
19. AX4E2
Isolated System
?Tb= kb x molality
octahedral
square planar
20. Polyatomic Ions (bonding)
Anode
Covalently w/in themselves - Ionicly bonded w/ each other
allotrope
First-Order Half Life
21. In ideal gas law problem - when it says "atmospheric" ...
trigonal pyramidal
boiling point
bromate
Pressure of H2O must be Subtracted
22. negative ion
Anion
Molal FP Depression Constant
Ionic
methoxy-
23. Generally insoluble anions (names)
spontaneous
hept-
phosphate - sulfide - carbonate - sulfate
geometric isomers
24. AX4E2
Molar Heat Capacity
square planar
Osmotic Pressure
Lone Pair
25. In covalent bonds - prefixes are used to tell...
Allotrope
purple
Amount of atoms present
condensation
26. Elements which have unpaired electrons and highly affected by magnetic fields
paramagnetic
adiabatic
Calorimetry
Pauli Exclusion Principle
27. (organics) seven carbons
electrolyte
Quantum Model
Angular Momentum Quantum Number
hept-
28. The driving force for a spontaneous is an increase in entropy of the universe
Entropy (S)
v3kT/m
Weight
tetrahedral
29. 760 mmHg - 760 torr
Molecule
1 atm
viscosity
Dipole Moment
30. When ____ significant digits - round answer to least decimal place
Atomic Mass Unit
Molal BP Elevation Constant
heat of fusion
Adding
31. Significant Digits of counted things
oxalate
sulfite
not spontaneous
endless
32. As protons are added to the nucleus - electrons are similarly added
Thermochemistry
Le Chatelier's Principle
Aufbau Principle
Integrated First-Order Rate Law
33. Type of system in which nothing is transfered (no mass or energy); ideal
Isolated System
acetate
charge
Quantum Numbers
34. Solution used in titration
Exothermic
perchlorate
titrant buret
alkyne
35. SI unit of energy; Kg*m^2/s^2
hydrolysis
Joule
Angular Momentum Quantum Number
dichromate
36. C=2.9979*10^8 m/s
Ag+ - Pb2+ - Hg2+ - Sr2+ - Ca2+ - Ba2+
single bond
Quantum Mechanical Model
Speed of light
37. Instrument used to measure the pressure of a not-atmospheric gas (open or closed system)
double bond
Manometer
conjugate acid
Faraday
38. Mol/kg of solvent - used in calculating colligative properties
Transition metals
Gamma Ray-
Molality
red
39. Dirrect Method Formula
AH rxn = (Sum of AH of formation of products) - (Sum of AH of formation of reactants)
chloride
Buffer
soluble
40. Forward rxn occurs when
sublimation
Joule
Q<K
Resonance
41. 120° - sp^2
insoluble
Finding Empirical Formulas
Trigonal Planar
Law of Multiple Proportions
42. Melting
blue-violet
Electronegativity
Radioactivity
fusion
43. Only contains ions that change in reaction
Dipole Moment
Endothermic
Net Ionic Equation
p
44. Oxidation # of Compounds
Diffusion
Endothermic
square planar
0
45. Mol/L - concentration of a solution
Oxidation is Loss Reduction is Gain
hydrolysis
insoluble
Molarity
46. Mass reactants= mass products
Law of Conservation of Mass
Its element
Monoprotic
Positive work value; work done on system
47. Group 1 - Ammonium - Nitrates - Acetates - Sulfates - Halides
Temperature
Its element
E
soluble
48. Consists of a complex ion - a transition metal with attached ligands - and counterions
Multiplying
octahedral
4.184
Coordination Compound
49. R=
0.0826Latm/Kmol
ln (k1/k2) = (Ea/R)(1/T2-1/T1)
entropy
Delta H or Enthalpy Change
50. Substance being dissolved in a solution (lower [ ])
Solute
# protons + # neutrons
melting
critical point
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