Asample of an unknown liquid has a volume of 30.0 ml and a mass of 6 g. what is its density? show your work or explain how you determined this value.

The density of the object will be  

Explanation:

Density is defined as the mass contained per unit volume.

Given : Mass of liquid= 6 grams

Volume of liquid =

Putting in the values we get:

Thus density of the liquid will be

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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