Test your basic knowledge |

AP Chemistry 2

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. What process do you use to separate two liquids with different boiling points?
CN?
CH3COO?
MnO4?
fractional distillation

2. How many ligands attach to a central ion in a complex ion?
Acidic is when [H?] > [OH?] - basic is when [H?] < [OH?] - acidic is when [H?] = [OH?]
Soluble except Ag - Pb - Ca - Sr Ba)
Experimental mass/theoretical mass X 100
#ligands=charge x2

3. How does group 1 metals' density compare to water's?
metal oxides and hydrides are ionically bonded and basic
Cr2O7²?
ROR
are less dense than water

4. Metal hydrides are _____ and form _______ and _______ when added to water
ionic and form hydrogen and hydroxide
RCOOR
Cu3(PO4)2
benzene is less reactive than alkenes

5. What are the products of the reaction between group 1 metals and water?

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183

6. What is the formula for alkanes?
CnH2n+2
Thermo: R=8.31J/mol/K - gas calculations: R=.0821 L atm/mol/K or 62.4L mmHg/mol/K
Distillation
Insoluble

7. What two types of substances are present in all redox reactions?
[Ag(NH3)2]? - [Cu(NH3)4]²? - [Cd(NH3)4]²? - [Zn(NH3)4]²?
AgF-soluble in water - other silver halides insoluble in water - AgCl-soluble in excess ammonia - AgBr-somewhat soluble - AgI (yellow)-somewhat soluble in excess ammonia
an oxidized and reduced substance
Lack of rotation of groups around a double bond. (cis has groups on same side - trans on opposite sides)

8. hypochlorite
Iodine and CO2 (dry ice)
R=8.31 J/mol/K
ClO?
CnH2n-2

9. Which value of R do you use for all energy and kinetics calculations?
ion pairing
ionic and form hydrogen and hydroxide
R=8.31 J/mol/K
red - green - blue

10. Color is due to ______ _______ of light.
Mention effective nuclear charge (shielding) and distance of outer electrons from the nucleus
Selective absorption
Experimental mass/theoretical mass X 100
RCHO (carbonyl at end)

11. Flame tests for certain metal ions (simple emission spectra) gives which colors for potassium - sodium - lithium - copper - barium
ionic and form hydrogen and hydroxide
The one with most oxygen atoms (highest oxidation number)
Trigonal pyramidal
Pale purple - (orange)-yellow - red - blue - green.

12. What is Ksp in terms of molar solubility ('s') for an electrolyte A2B or AB2?
Acidic solutions (Ex: [Fe(H2O)6]³? + H2O = Fe(H2O)5OH]²? + H3O?)
Ksp = 4s³
do not change
Saturated - Substitution (which requires more radical conditions)

13. Acid plus base make?
Two forms of the same element (same Z) with different # of neutrons and similar chemical properties
Salt + water.
Acid spill-NaHCO3 (baking soda) base spill-acetic acid (vinegar)
fractional distillation

14. phosphate
Synthetic condensation polymer (aka a polyamide)
No - it depends on the number of ions produced on dissolving.
bent
PO4³?

15. What are hybrid orbitals used for?
[A?]/[HA] x 100 or [BH?]/[B] x 100
Increases down group 1 decreases down group 17
a-IMFs - b-molecular volume
Making sigma bonds and holding lone pairs

16. How are metal oxides and hydrides bonded? are they acidic or basic?
There's one normal boiling point (1 atm) - but many boiling points (P dependent)
metal oxides and hydrides are ionically bonded and basic
S crystal at 0K=0
Exothermic

17. Neutralization is an ________ reaction.
Meth - eth - prop - but - pent - hex - hept - oct - non - dec
The compound with the lowest Ksp value.
The benzene ring (or more correctly the phenyl group - C6H5)
Exothermic (?H for ANY sa/sb = -57kJ/mol)

18. What is HCOOCH3?
No - it depends on the number of ions produced on dissolving.
blue glass - it filters UV
#ligands=charge x2
Acids; HCOOCH3 is an ester

19. What is the third law of thermodynamics?
Mn²? - Cr³? - Cr³
Graduated cylinder
CO2 and H2O
S crystal at 0K=0

20. Which alkali metals float on water?
Ksp = 4s³
All except for lithium
Pale purple - (orange)-yellow - red - blue - green.
WA/SB: pH>7 SA/WB: pH<7 SA/SB: pH=7

21. How are strong ones written?
strong acids/bases are written as H+ or OH- ions
ROH
OH?
More chaotic (ex: gases made)

22. Are weak acids (and bases) written dissociated?

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183

23. primary colors
zero
red - green - blue
Acids; HCOOCH3 is an ester
The compound with the lowest Ksp value.

24. nitrate
no - they're written undissociated (HAaq)
Meth - eth - prop - but - pent - hex - hept - oct - non - dec
[Ag(NH3)2]? - [Cu(NH3)4]²? - [Cd(NH3)4]²? - [Zn(NH3)4]²?
NO3?

25. When is ?G zero?
Ksp = s²
benzene has a delocalized pi ring structure
?G is zero at equilibrium when spontaneity is the same in either direction (K=1)
diamond and graphite

26. What are the units of the first order rate constant?
Time?¹ - (ex. s?¹ - hr?¹ - etc)
CnH2n-2
zero
There's one normal boiling point (1 atm) - but many boiling points (P dependent)

27. What are two allotropes of carbon?
diamond and graphite
r1/r2=(M2/M1)^½ - v1/v2=(T1/T2)^½ - E1/E2=T1/T2
Heat a test tube at an angle at the side of the tube (not bottom)
an oxidized and reduced substance

28. What type of solutions do small - highly charged cations tend to form?
[A?]/[HA] x 100 or [BH?]/[B] x 100
Acidic solutions (Ex: [Fe(H2O)6]³? + H2O = Fe(H2O)5OH]²? + H3O?)
How close results are to the accepted value
do not change

29. What is the basic structure of an optical isomer?
ClO4?
+4-covalent - +2-ionic
Optical isomers contain at least one chiral (asymmetric) C atom which is a C atom that has four different groups attached to it.
hydroxides (ex: Ba(OH)2)

30. When driving off water from a hydrate - how do you tell you're done?
Most INsoluble except group 1 and ammonium
10?8
Heat to constant mass-weigh - reheat - cool - and weigh again until mass is constant
Monomer + monomer = polymer product + a simple molecule such as water or HCl

31. What are amphoteric oxides?
CN?
Suniverse increases for spontaneous processes
Ions go through the salt bridge - electrons go through metal wires in the external circuit
Oxides that react with both acids (make salts + water) AND bases (forms complex ion - ex: ZnO and Al2O3 in bases make Zn(OH)4²? and Al(OH)4? or Al(OH)6³?)

32. Give an example of a concentrated weak acid.
R=8.31 J/mol/K
Nothing
C4H10
Glacial acetic acid

33. What two compounds are great oxidizing agents?

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183

34. What is the word equation for addition polymerisation?
n(unsaturated monomer) = polymer (no loss in material) ex. n(C2H4) = (C2H4)n (polyethylene)
O2 needs 4F/mol H2 needs 2F/mol
NH4?
H+

35. Colorless doesn't mean ______
Clear
The benzene ring (or more correctly the phenyl group - C6H5)
K1 x K2
methyl formate

36. What shape is methane?
it's lower and occurs over less sharp a range
Increases down group 1 decreases down group 17
CH3COO?
Tetrahedral

37. dichromate
Cr2O7²?
Pipette (burette if need repetition)
How grouped results are
CrO4²?

38. lead iodide
lighted splint (positive result=pop)
Hydrogen (active metals are metals with more negative reduction potentials in E° chart)
a-IMFs - b-molecular volume
bright yellow

39. Does the electrolyte with the lowest Ksp value have to be the least soluble? Why?
Glowing splint (positive result=relights)
No - it depends on the number of ions produced on dissolving.
Exothermic (?H for ANY sa/sb = -57kJ/mol)
RNH2

40. perchlorate
metal oxides and hydrides are ionically bonded and basic
ClO4?
4 sigma bonds-109° - sp³ - one double bond-120° - sp² two double bonds-180° - sp one triple bond-180° - sp
Increases for endo - (becomes more soluble) decreases (becomes less soluble) for exo.

41. For a dibasic acid (H2A) - [A²?]= ____ ?
Combine: multiply Keq - reverse: 1/Keq - Halve coefficients: Keq^(1/2)
Sigma bonds are stronger than pi bonds
NO3?
K2

42. permanganate
voltaic: - electrolytic: +
MnO4?
Supercooling can occur when cooling a solvent or solution. It occurs when there's a dip and then a rise back up to the melting point on a cooling curve.
Salt and water

43. Can you collect soluble gases over water?
No - NH3 and HCl gases are extremely soluble
CH3COO?
strong acids/bases are written as H+ or OH- ions
yellow

44. Why are noble gases stable?
They have high ionization energies (due to high nuclear charge and no shielding) and cannot add electrons due to full valence shell
No - it depends on the number of ions produced on dissolving.
strong acids/bases are written as H+ or OH- ions
OH- and NH3

45. What are isomers?
no - they're written undissociated (HAaq)
Glowing splint (positive result=relights)
Molecules with the same molecular formulas - but different structural formulas
Potassium permanganate and potassium dichromate (they're clues that a reaction will be redox)

46. What is the formula for obtaining charge flowing in a cell?
Whether or not they can form H-bonds with water (ex: Ethyl alcohol is soluble but dimethyl ether is not)
Q=It (time in seconds)
buret - pipette - pipette filler - Erlenmeyer flask - volumetric flask
Increases for endo - (becomes more soluble) decreases (becomes less soluble) for exo.

47. What is the general formula for an aldehyde?
water and substances with (s) less dense than
Supercooling can occur when cooling a solvent or solution. It occurs when there's a dip and then a rise back up to the melting point on a cooling curve.
RCHO (carbonyl at end)
Supercooling can occur when cooling a solvent or solution. It occurs when there's a dip and then a rise back up to the melting point on a cooling curve.

48. How does the KE and PE of ice at 0°C compare to the KE and PE of water at 0°C?
same KE - but PEice<PEwater
RCOOH
Most are soluble except Ag - Pb
it's lower and occurs over less sharp a range

49. What measuring device would you use for very small volumes of liquids?
Pipette (burette if need repetition)
same KE - but PEice<PEwater
Sigma bonds are stronger than pi bonds
Meth - eth - prop - but - pent - hex - hept - oct - non - dec

50. Generally - which oxy acid is strongest?
The one with most oxygen atoms (highest oxidation number)
All single: sp³ - one double: sp² - two doubles: sp - one triple: sp - two single and two lone pairs: sp³ - three single and one lone pair: sp³
O2 needs 4F/mol H2 needs 2F/mol
[Ag(NH3)2]? - [Cu(NH3)4]²? - [Cd(NH3)4]²? - [Zn(NH3)4]²?

Sorry!:) No result found.

Can you answer 50 questions in 15 minutes?

Major Subjects
Tests & Exams AP CLEP DSST GRE SAT GMAT	Certifications CISSP go to https://www.isc2.org/ PMP ITIL RHCE MCTS More...	IT Skills Android Programming Data Modeling Objective C Programming Basic Python Programming Adobe Illustrator More...	Business Skills Advertising Techniques Business Accounting Basics Business Strategy Human Resource Management Marketing Basics More...
Soft Skills Body Language People Skills Public Speaking Persuasion Job Hunting And Resumes More...	Vocabulary GRE Vocab SAT Vocab TOEFL Essential Vocab Basic English Words For All Global Words You Should Know Business English More...	Languages AP German Vocab AP Latin Vocab SAT Subject Test: French Italian Survival Norwegian Survival More...	Engineering Audio Engineering Computer Science Engineering Aerospace Engineering Chemical Engineering Structural Engineering More...
Health Sciences Basic Nursing Skills Health Science Language Fundamentals Veterinary Technology Medical Language Cardiology Clinical Surgery More...	English Grammar Fundamentals Literary And Rhetorical Vocab Elements Of Style Vocab Introduction To English Major Complete Advanced Sentences Literature Homonyms More...	Math Algebra Formulas Basic Arithmetic: Measurements Metric Conversions Geometric Properties Important Math Facts Number Sense Vocab Business Math More...	Other Major Subjects Science Economics History Law Performing-arts Cooking Logic & Reasoning Trivia

Test your basic knowledge |

AP Chemistry 2

Sorry!:) No result found.

Can you answer 50 questions in 15 minutes?

Let me suggest you:

Browse all subjects

Browse all tests

Most popular tests

Major Subjects

Tests & Exams

Certifications

IT Skills

Business Skills

Soft Skills

Vocabulary

Languages

Engineering

Health Sciences

English

Math

Other Major Subjects

Browse all subjects

Browse all tests

Most popular tests