1)What is the chemical formula of the perchlorate anion?

  1. ClO-
  2. ClO2-
  3. ClO3-
  4. ClO4-

2)What is the chemical formula for hydrogen sulfide?

  1. H2S
  2. HS
  3. HSO
  4. HSO2

3)What is the chemical formula for Potassium Sulfate?

  1. K2SO4
  2. ZnO
  3. (NH4)2SO4

4)What is the atomic mass of ?

  1. 6
  2. 14
  3. 8
  4. 20

5)How many grams are in 2.15 moles of Fe2O3?

  1. 735 g
  2. 500 g
  3. 343 g
  4. 267 g

6)When given 100 g of SiO what amount (in grams) of each element would you have in you knew that the compound contained (by mass) 30% Si and 70% O2?

  1. .3 g Si and .7 g O2
  2. 1/3 g Si and 1/7 g O2
  3. 30 g Si and 70 g O2
  4. Can’t solve

7)What isthe name of the polyatomic ion PO43-?

  1. Perphosphate ion
  2. Phosphate ion
  3. Hypophosphate ion
  4. Phosphite ion

8)How many protons,neutrons and electrons are in 27Al3+?

  1. P=13 e=10 n=14
  2. P=27 e=27 n=14
  3. P=13 e=14 n=10
  4. P=30 e=27 n=10

9)Name this compound ClO3-?

  1. Chlorite
  2. Chloride trioxide
  3. Chlorate
  4. Chlorine Oxide

10)What is the formula weight of Ca(NO3)2?

  1. 154.3 amu
  2. 195.7 amu
  3. 164.1 amu
  4. 9.0 amu

11)Consider the following reaction:

2C2H4(g) + 5O2(g)  2H2O(g) + 4CO2(g)

If a chemist allows 2.0 moles of C2H2(g) to react completely with a significant amount of O2(g) and measures 150g of carbon dioxide after combustion, what was the percent yield of CO2(g)?

  1. 90%
  2. 117%
  3. 24%
  4. 85%

12)What is the second group in the periodic table?

  1. Transition metals
  2. Alkaline earth methals
  3. Noble gasses
  4. Halogens

13)2Hg(NO3)3(s)  2HgO + 4NO2(g) + O2(g) is an example of a ______reaction

  1. Decomposition
  2. Combustion
  3. Combination
  4. None of the above

14)Name the compound FeCl3

  1. Iron(II) Chloride
  2. Iron(III) Chloride
  3. Sodium Chloride
  4. Iron Chloride

15)Which is an alkaline earth metal?

  1. Cs
  2. N
  3. Ca
  4. Br

16)How many moles are in 150 grams of sucrose? Sucrose = C12H22O11

  1. 4.38 x 10-1 moles
  2. 5.13 x 104 moles
  3. 6.02 x 1023 moles
  4. 3.42 x 102 moles

17)5 g of Al is added to 120 mL of water. The water started at 50C, and the Al started at 25C. there is no reaction just transfer of heat. What is the final temperature of the water?

18)What is Molarity/concentration?

  1. Mol/mL
  2. g/L
  3. mol/L
  4. g/mL

19)How many mL of 3.00M H2SO4 is required to make 450mL of .100M H2SO4?

  1. 15mL
  2. 30 mL
  3. 45 mL
  4. 60 mL

20)Dilution is the process of reducing the concentratiuon of a(n) ______by adding a(n)______?

  1. Solvent; Solute
  2. Solute; solvent
  3. Acid; base
  4. Base; acid

21)A pulled bowstring on a hunting bow would be an example if ______.

  1. Potential Energy
  2. Kinetic Energy
  3. Both a and b
  4. Neither

22)What is the correct equation for heat?

  1. qCs = m∆T
  2. q=mCs∆T
  3. q=Cs∆T/m
  4. qm=∆T/Cs

23)What is the net ionic equation of HCl + Ca(OH)2 CaCl2 + H2O?

  1. H+ + 2Ca(OH)2 H2O
  2. H+ + 2Ca2+

24)What is the net ionic equation of Ba(OH)2(aq) + H2SO4(aq) BaSO4(s) + 2H2O(l)

25)What are the characteristic of a strong electrolyte?

  1. For ions
  2. Don’t form ions
  3. Strong acids
  4. Strong bases

26)What ist he oxidation state for the molecule HClO?

  1. 0, +6, -2
  2. +2, +7, -2
  3. +1, +7, -2
  4. -1, +4, +2

27)What is the oxidation state of O in Fe(NO3)2?

  1. -12
  2. -2
  3. -1
  4. +4

28)Calculate the mass of the precipitate BaSO4 when you mix 30 mL of .5M Ba(NO3)2 with 43 mL .263 M Na2SO4?

29)If 194J of work is done on the system and the system loses 81J of heat, what is the internal energy?

  1. 113J
  2. 275J
  3. -113J
  4. -275J

30)N2 + 3H22NH3 what is being reduced?

  1. H in H2
  2. N in N2
  3. H in NH3
  4. N in NH3
  5. Nothing is being reduced

31)Which is a strong electrolyte?

  1. HCl
  2. NaOH
  3. Na
  4. S

32)Which represents a strong acid?

  1. A
  2. B
  3. C
  4. A and B
  5. B and C
  6. A and C
  7. A, B and C

33)If you have this acid base equation: WA(aq) + WB(aq) what is it’s products?

  1. SB + WA
  2. SA + SB
  3. WA + WB
  4. SA + WB

34)Comparing the strengths of sigma and pi bonds, which of the following is true?

  1. Sigma bonds are stronger than pi bonds
  2. Pi bonds are stronger than sigma bonds
  3. The bonds are of equal strength
  4. It depends on what is being bonded

35)Which is the most common resonance structure of NCS-

36)Which is correct?

37)What is the hybridization of H2O?

  1. (sp)
  2. (sp2)
  3. (sp2)(p)
  4. (sp3)

38)What is the molecular geometry of a molecule with 3 electtron domains and 2 bonding domains

  1. T shaped
  2. Tetrahedral
  3. Bent
  4. Triganol planar

39)What is the most electronegative?

  1. F
  2. Ba
  3. Li
  4. I

40)What is the bond angle of NH3?

  1. 120
  2. 90
  3. 109.5
  4. 180

41)what is PF5 hybridization?

  1. sp
  2. (sp)(p)(p)
  3. sp2
  4. (sp2)(p)

42)What is the difference between electron and molecular geometry?

  1. # of electron geometries
  2. # of molecules
  3. # of bonded vs. unbounded electron pairs
  4. # of formal charges