You are performing a titration experiment using a standard solution of 0.15M KOH and 15mL of an acid. You do not know the concentration or the identity of the acid, but it was neutralized by exactly 15mL of KOH. Using titration calculations, can you calculate the concentration of this acid? Explain why or why not.

that tool would be a compass

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.