Solid sodium combines with a solution of magnesium fluoride to form sodium fluoride solution and magnesium metal. Convert this statement into word equation. PLZ and ASAP

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.

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a chemical change results in a new substance being formed; whereas a physical change will result in a different state of matter

explanation: