If the experimental value for the percentage of O is 37%, The accepted value of the percentage of Oxygen is 40%, what is the error in the experiment? 6.5%08.1% 7.5% 5%

C) 7.5%

Explanation:

Accepted value of a substance can be said to be that number or "value" that is generally accepted by scientists worldwide.

Experimental value is that value is a substance that is gotten from experiments in the lab.

Experimental error then is the percentage difference between the accepted value and experimental value.

Percentage error = [(|experimental value - accepted value|) / (accepted value)] * 100%

Percentage error = [(|37 - 40|) / 40] * 100%

% error = 3/40 *100%

% error = 0.075 * 100

% error = 7.5%

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.