Mercury(II) chloride, $\mathrm{HgCl}_2$, dissolves in water as discrete molecules. What is a simple procedure for determining that this is true?
A.
Observe the presence of molecules with an optical microscope.
B.
Use paper chromatography.
C.
Measure the electrical conductivity of the solution.
D.
Add silver nitrate solution to precipitate the chloride ion as AgCl
Exam No：AP Chemistry Practice Test Year：2024 Question No：APChemistry2024AP0404
Answer:
C
Knowledge points:
6.1 Endothermic and Exothermic Processes
Solution:
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