A 3.43-gram silicon dioxide sample reacted with 2.17 grams of solid carbon. The products of this reaction were silicon carbide and carbon monoxide gas. According to the law of conservation of mass, what is the combined mass of silicon carbide and carbon monoxide gas that should be formed? A. 5.60 grams B. 3.43 grams C. 2.17 grams D. 0.00 grams

the answer is 5.60

Explanation:i took the test on that question and i got it correct

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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