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.   non-electrolyte
B.   electrolyte
C.   soluble
D.   insoluble
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.   4
B.   8
C.   2
D.   6
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.   double displacement
C.   precipitation
D.   redox
E.   single displacement
F.   acid base
Question #4
Consider the chemical equation: Co + CS2 ⟶Co2S3 + CS What is the oxidizing agent?
A.   C
B.   CS
C.   CS2
D.   Co
E.   S
F.   Co2S3
Question #5
What is the oxidation state of Cl in KClO3? write +/- and a #. (ie +2 or -3)
A.   +5
B.   +4
C.   -5
D.   +3
Question #6
Which of the following is the oxidizing agent? CuSO4 + Zn --> ZnSO4 + Cu
A.   ZnSO4
B.   CuSO4
C.   Cu
D.   Zn

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