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Oksana_A [137]
3 years ago
5

Please help with this question.

Chemistry
1 answer:
marysya [2.9K]3 years ago
4 0

Answer:

It is C.

Explanation:

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Carbon-14 emits beta radiation and decays with a half life of 5730 years. Assume you start with 2.5x10^15 grams of Carbon-14, ho
saveliy_v [14]

The amount remaining at the end of 5 half-lives is 7.81×10¹³ g

From the question given above, the following data were obtained:

  • Half-life (t½) = 5730 years
  • Original amount (N₀) = 2.5×10¹⁵ g
  • Number of half-lives (n) = 5
  • Amount remaining (N) =?

The amount remaining can be obtained as follow:

N = 1/2ⁿ × N₀

N = 1/2⁵ × 2.5×10¹⁵

N = 1/32 × 2.5×10¹⁵

N = 0.03125 × 2.5×10¹⁵

N = 7.81×10¹³ g

Therefore, the amount remaining after 5 half-lives is 7.81×10¹³ g

Learn more about half-life: brainly.com/question/25783920

3 0
2 years ago
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NeX [460]

Answer:

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Explanation:

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All of the following are empirical formulas except:
crimeas [40]
The answer to this question is B; C6H6 is not an empirical formula as it can continue to be reduced to CH
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You spill a little bit of olive oil on your hands. You wash off the oil with soap and water. How does the soap get the oil off y
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B. Better ways to recycle plastics

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A chemist might choose to study better ways to recycle plastics because there may be certain types of chemicals that can disintegrate the plastic..

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