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igomit [66]
3 years ago
12

Which of the following statements explains how the fossil record provides evidence that evolution has occurred?

Chemistry
1 answer:
olasank [31]3 years ago
7 0
I think it will be letter A tbh
Hope this helps you out
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What did J.J. Thomson discover about the atom that changed the atomic model previously used?
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J.J. Thomson hypothesized and discovered that the atom was not the smallest unit of matter but that instead there were much smaller units. He discovered "sub-atomic particles" which make up atoms. The sub-atomic particle that Thomson discovered was the electron. He discovered this through a process of experiments testing cathode rays.
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What is the mass of 1.25 mol of zinc ​
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1 mole is equal to 1 moles Zinc, or 65.38 grams.

Explanation:

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3 years ago
Help me I hate science so much​
mestny [16]

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yeah because its  hargf

8 0
3 years ago
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The partial pressure of N2 in the air is 593 mm Hg at 1 atm. What is the partial pressure of N2 in a bubble of air a scuba diver
Evgen [1.6K]

Answer: Partial pressure of N_{2} at a depth of 132 ft below sea level is 2964 mm Hg.

Explanation:

It is known that 1 atm = 760 mm Hg.

Also,   P_{N_{2}} = x_{N_{2}}P

where,    P_{N_{2}} = partial pressure of N_{2}

                 P = atmospheric pressure

            x_{N_{2}} = mole fraction of N_{2}

Putting the given values into the above formula as follows.

      P_{N_{2}} = x_{N_{2}}P

    593 mm Hg = x_{N_{2}} \times 760 mm Hg

       x_{N_{2}} = 0.780

Now, at a depth of 132 ft below the surface of the water where pressure is 5.0 atm. So, partial pressure of N_{2} is as follows.

         P_{N_{2}} = x_{N_{2}}P

                  = 0.78 \times 5 atm \times \frac{760 mm Hg}{1 atm}

                  = 2964 mm Hg

Therefore, we can conclude that partial pressure of N_{2} at a depth of 132 ft below sea level is 2964 mm Hg.

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3 years ago
The diagram below represents a sodium atom bonding to a chlorine atom to form sodium chlorine.
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Sodium Chloride is a compound.
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