What is the molarity [M] of a solution created by dissolving 193.1 grams of KCl to create a 2.0 L solution?

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i think it is true since you can test the answer and can use observations to complete it.

metals are good conductor of electricity. it has free electrons on their surface. according to electron pool theory, each atom present in a metal crystal losses all of its valence electron and as a result a pool of free is form. these pool of electrons are free to move and   conduct electricity easily   while making metal as good conductor.

the correct answer is a. the ability of electrons to flow throughout the metal.

if it's not useful, feel free to report for mistake in answer.