Several students were studying five compounds. They wanted to see if the compounds would conduct electricity when dissolved in water. A small sample of each compound was placed in a beaker, and 100 mL of pure water was added. Each sample dissolved in the water. A conductivity tester was placed in each beaker. A glowing green bulb meant the sample was a conductor. A glowing red bulb meant the sample was not a conductor.
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The students recorded the results in a data table.
Conductivity Test of Five Compounds
Compound Observation
NaI
Green bulb glowed.
C
6
H
12
O
6
Red bulb glowed.
Zn
(
NO
3
)
2
Green bulb glowed.
Li
2
SO
4
Green bulb glowed.
C
H
3
OH
Red bulb glowed.
Using the data table and a periodic table, which three of these compounds are most likely to be conductors of electricity?
A.
NaCl
B.
K
2
SO
4
C.
C
12
H
24
O
12
D.
C
2
H
5
OH
E.
Sr
(
NO
3
)
2
