Chemistry 060 - Introduction to General Chemistry » Fall 2020 » Comprehension Assessment

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Question #1
Choose all that apply. Which of the following is/are true of the compound SnI2 when it is placed in water?
A.   soluble
B.   insoluble
C.   non-electrolyte
D.   electrolyte
Question #2
When the following equation is balanced, what will be the coefficient of KOH(aq)? Give your answer as a number. Al2(SO4)3(aq) + KOH(aq) ⟶ Al(OH)3(aq) + K2SO4(aq)
A.   2
B.   6
C.   4
D.   8
Question #3
Choose all that apply: The following chemical equation can be classified as which types of reaction(s)?KCl(aq) + AgNO3(aq) ⟶ AgCl(s) + KNO3(aq),,
A.   combustion
B.   single displacement
C.   acid base
D.   redox
E.   double displacement
F.   precipitation
Question #4
Consider the chemical equation: Co + CS2 ⟶Co2S3 + CS What is the oxidizing agent?
A.   S
B.   CS2
C.   CS
D.   Co2S3
E.   Co
F.   C
Question #5
What is the oxidation state of Cl in KClO3? write +/- and a #. (ie +2 or -3)
A.   -5
B.   +5
C.   +3
D.   +4
Question #6
Which of the following is the oxidizing agent? CuSO4 + Zn --> ZnSO4 + Cu
A.   CuSO4
B.   Zn
C.   Cu
D.   ZnSO4

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