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CHM 1025, Spring 2017, Exam 2 Review Packet (UF Teaching Center)
Name: _____________________________________ Date: _________________
1. Which of the following is NOT a strong acid?
a. HF
b. HCl
c. HBr
d. HI
e. H2SO4
2. Which chemical equation correctly represents the decomposition reaction that takes
place when ammonia break down to form hydrogen gas and nitrogen gas.
a. NH3 + H2  N2
b. NH3  H2 + N2
c. H2  N2 + NH3
d. NH3 + H  N
e. NH3  H + N
3. Which of the following is the correct net ionic equation for the reaction of aqueous
silver nitrate and aqueous potassium chloride?
a. Ag+ (aq) + Cl- (aq)  AgCl (s)
b. AgNO3 (aq) + KCl (aq)  KNO3 (aq) + AgCl (s)
c. K+ (aq) + NO3—(aq)  KNO3 (aq)
d. 2Ag+ (aq) + 2Cl- (aq)  2AgCl (s)
e. AgNO3 (aq) + KCl (aq)  AgCl (s)
4. What is the name of the following molecule? CH3-CH2-CH2-CH2-CH3
a. Butane
b. Propane
c. Decane
d. Pentane
e. Hexane
5. A sample of a hydrocarbon undergoes complete combustion to produce 0.845 g of CO2
and 0.173 g of H2O. What is the molecular formula of this compound, given that its
molar mass is around 52 g/mol?
a. C3H3
b. C4H4
c. C5H5
d. C6H6
e. C7H7
6. Which of the following compounds would be insoluble?
a. NaCl
b. NH4I
c. LiNO3
d. BaSO4
e. Ba(OH)2
7. Which of the following ionic compounds could exist?
a. NaS2
b. Ca2Br
c. CO2
d. TiO2
e. Al2F3
8.
Which of the following pairings of name : formula is incorrect?
a. Calcium Nitrate : Ca(NO3)2
b. Copper Sulfate : CuSO4
c. Lead (II) Carbonate : PbCO3
d. Sodium Perchlorate : NaClO4
e. Carbon Monoxide : CO
9. If volumes are additive and 80.0 mL of 0.40 M sodium chloride is mixed with 120 mL
of a calcium chloride solution to give a new solution in which [Cl-] is 0.52 M, what is
the concentration of the calcium chloride used to make the new solution?
a. 0.60 M
b. 0.30 M
c. 0.072 M
d. 0.036 M
e. 0.52
10. Which of the following would be the correct formula for the compound Chromium
(III) Sulfate?
a. Ch2(SO3)2
b. Cr3SO4
c. CrSO4
d. Cr2(SO4)3
e. Ch(SO4)2
11. How many atoms are in Aluminum dichromate?
a. 29
b. 14
c. 20
d. 35
e. 9
12. You are given the following ions in solution (Mg2+, Na+, Sr2+). Which of the following
compounds can be used to successively precipitate only the strontium ions.
a. Aluminum chloride
b. Ammonium sulfate
c. Barium bromide
d. Potassium nitrate
e. Iron (II) chlorate
13. If you have a 50mL of a 4M solution of HCl, what volume would you need to create a
solution of 9M?
a. 5 mL
b. 15 mL
c. 22 mL
d. 30 mL
e. 100 mL
14. What is the sum of the coefficients in the combustion of butane?
a. 17
b. 33
c. 16
d. 35
e. 27
15. What is the (m/m) concentration of 0.5 moles of NaCl in 20mL of water?
a. 04%
b. 20%
c. 48%
d. 59%
e. 11%
16. What are the formulas for the following acids? Iodous acid, hydroiodic acid, periodic
acid?
a. HIO3, HIO, HI
b. HIO2, HI, HIO6
c. HI, HIO3, HIO
d. HIO, HI, HIO2
e. HIO2, HI, HIO4
17. How many grams of KCl are needed to make 300mL of a 4M solution?
a. 91.2
b. 89.5
c. 35.6
d. 61.9
e. 80.5
18. What type of reaction is occurring when Iron (III) phosphate reacts with Lithium
nitrate?
a. Combination
b. Decomposition
c. Single replacement
d. Double replacement
e. Combustion
19. Balance the following equation:
__FeBr3 + __H2SO4  __Fe2(SO4)3 + __HBr
a. 3, 1, 2, 5
b. 2, 3, 1, 6
c. 1, 2, 3, 5
d. 4, 1, 1, 1
e. 2, 5, 1, 6
20. Magnesium sulfate and calcium chloride react to form what precipitate?
a. Magnesium chloride
b. Calcium sulfate
c. Magnesium calcium
d. Chloride sulfate
e. Silver chloride