Two separate samples of a solid red powder are analyzed for their elemental composition. Each consists of mercury and oxygen as follows. Sample 1 has a mass of
1.0410 g and contains 0.9641 g mercury and 0.0769 g oxygen. Sample 2 has a mass of
1.5434 g and contains 1.4293 g mercury and 0.1141 g oxygen. Both samples are found
to contain the same percentage by weight of mercury. Could the two samples be the
same compound? What law explains why or why not?

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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