In demonstrations of strong and weak electrolytes and nonelectrolytes, a lightbulb apparatus that shows how much a solution conducts electricity by the brightness of the light is often used.When pure water is tested, the bulb does not light.Which of the following aqueous solutions causes the bulb to burn the brightest?
A) formic acid, HCOOH
B) ammonia, NH3
C) table sugar, C12H22O11
D) a calcium salt, CaCl2
E) methanol, CH3OH
Correct Answer:
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