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user100 [1]
3 years ago
14

When radiometric dating is done on a rock sample, the rock’s is determined.

Chemistry
2 answers:
hjlf3 years ago
5 0

Radiometric dating is done on rocks to determine their age

In this technique carbon -14 dating is used to determine the amount of carbon 14 which based on half life of the isotope gives the age of the rock.


Dennis_Churaev [7]3 years ago
3 0

absolute age

Just took the test

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Write the balanced equation for the formation of the Grignard reagent from bromobenzene.
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Answer:

hello your question is incomplete attached below is the complete question

Write the balanced equation for the formation of the Grignard reagent from bromobenzene. Include all reagents and products BUT NOT SOLVENTS.

answer : attached below

Explanation:

I mol mg + 1 mol bromobenzene = 1 mol Grignard

attached below is the balanced equation for the formation of the Grignard reagent from bromobenzene

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Rewrite each percent as a fraction and decimal 56%
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Which statement is true according to the kinetic theory?
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<em>Molecules of different gases with the same mass and temperature always have the same average kinetic energy - E.</em>

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Which polymer structure should be used if a strong and heat - resistant adhesive is required?
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3 years ago
A sample of nitrogen gas is at a temperature of 50 c and a pressure of 2 atm. If the volume of the sample remains constant and t
Lilit [14]

Answer:

The new temperature of the nitrogen gas is 516.8 K or 243.8 C.

Explanation:

Gay-Lussac's law indicates that, as long as the volume of the container containing the gas is constant, as the temperature increases, the gas molecules move faster. Then the number of collisions with the walls increases, that is, the pressure increases. That is, the pressure of the gas is directly proportional to its temperature.

Gay-Lussac's law can be expressed mathematically as follows:

\frac{P}{T} =k

Where P = pressure, T = temperature, K = Constant

You want to study two different states, an initial state and a final state. You have a gas that is at a pressure P1 and at a temperature T1 at the beginning of the experiment. By varying the temperature to a new value T2, then the pressure will change to P2, and the following will be fulfilled:

\frac{P1}{T1} =\frac{P2}{T2}

In this case:

  • P1= 2 atm
  • T1= 50 C= 323 K (being 0 C= 273 K)
  • P2= 3.2 atm
  • T2= ?

Replacing:

\frac{2 atm}{323 K} =\frac{3.2 atm}{T2}

Solving:

T2*\frac{2 atm}{323 K} =3.2 atm

T2=3.2 atm*\frac{323 K}{2 atm}

T2= 516.8 K= 243.8 C

<u><em>The new temperature of the nitrogen gas is 516.8 K or 243.8 C.</em></u>

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