In lab, you will experiment with three solutions ‒ di water, ethanol, and 4m cacl2 ‒ to develop a method to separate 6 types of plastic. what ideas do you have about possible methods to separate the plastics using these solutions? how could you change the densities of the solutions that are provided? how could you group the types of plastics to work out a separation method?

first one is the correct answer

it is a good conductor

explanation:

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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