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beks73 [17]
2 years ago
5

Fullerenes (like the one shown) are made up of hexagonal rings of carbon atoms (like in graphite or graphene) and alternating pe

ntagonal and heptagonal carbon rings to allow curvature of the surface producing molecules that have a complete hollow shape.
The extremely small diameter of the nanoparticle fullerenes (which act like a cage) allows them to readily pass through cell membranes and be readily absorbed into the body.

What potential benefit does this have in the pharmaceutical industry as well as medicine?




A)
The very small fullerene molecules would keep cancer cells from invading other healthy cells. As a result, it would keep cancer from spreading.




B)
The very small fullerene molecules could allow surgeons to see the insides of cells with tiny cameras as they perform complex surgery.




C)
The very small fullerene molecules could obstruct hazardous chemicals from getting into absorbed into cells.




D)
The very small fullerene molecules could easily deliver drugs directly into cells in a highly controlled manner.
Chemistry
1 answer:
vovikov84 [41]2 years ago
8 0

Answer:

Your answer choice is D

Explanation:

I just got it right on USATestprep :))

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Explanation:

As a neutral lithium atom contains 3 protons and its elemental charge is given as 1.602 \times 10^{-19} C. Hence, we will calculate its number of moles as follows.

          Moles = \frac{mass}{\text{molar mass}}

                     = \frac{0.7 \times 1000 g}{7 g/mol}

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According to mole concept, there are 6.023 \times 10^{23} atoms present in 1 mole. So, in 100 mol we will calculate the number of atoms as follows.

        No. of atoms = 100 \times 6.023 \times 10^{23}

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Since, it is given that charge on 1 atom is as follows.

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Therefore, charge present on 6.023 \times 10^{25} atoms will be calculated as follows.

    6.023 \times 10^{25} atoms \times 4.806 \times 10^{-19} C

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Thus, we can conclude that a positive charge of 28.95 \times 10^{6}C is in 0.7 kg of lithium.

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that's the correct answer

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