Question 1(Multiple Choice Worth 2 points) In the table below, which statement would best fill the missing box under "Open System"? Open System Closed System Matter freely moves Matter does not freely move Energy can enter or leave Energy is constant Energy is not exchanged Energy is freely exchanged Energy does not freely move

explanation: no but i do not usually comment

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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