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RSB [31]
3 years ago
6

Fossils of the Dorudon, an aquatic mammal that lived over 40 million years ago, show a whale-like animal that had small, underde

veloped hind limbs
Which best explains how fossils like the Dorudon support the theory that plant and animal life has evolved over time? (SC.7.L.15.2)
They confirm that many animals have not evolved
They confirm that many animals have not evolved
They prove that all animals evolved from a single ancestor
They demonstrate that animals that dont evolve will die out


Plzzzzz fastt

Chemistry
1 answer:
irina [24]3 years ago
3 0

Answer:

They prove that all animals evolved from a single ancestor

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Answer: 3.01 x 10^24 atoms

Explanation:

Based on Avogadro's law:

1 mole of any substance has 6.02 x 10^23 atoms

So, 1 mole of water = 6.02 x 10^23 atoms

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To get the value of Z, cross multiply

Z x 1 mole = (6.02 x 10^23 atoms x 5 moles)

Z•mole = 30.1 x 10^23 atoms•mole

Divide both sides by 1 mole

Z•mole/1 mole = 30.1 x 10^23 atoms•mole/ 1 mole

Z = 30.1 x 10^23 atoms

[Place the value of Z in standard form]

Z = 3.01 x 10^24 atoms

Thus, there are 3.01 x 10^24 atoms in 5 mole of water

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