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sleet_krkn [62]
3 years ago
6

How is half-life most likely used with respect to this fossil? to find the mass of the fossil to find the age of the fossil to d

etermine the species shown by the fossil to determine if radiation is being emitted from the fossil
Chemistry
2 answers:
son4ous [18]3 years ago
6 0

Answer:

To find the age of the fossil  

Step-by-step explanation:

You measure the intensity of the radiation (counts per minute) from a given mass of the sample.

If you know the half-life of the radioactive isotope (e.g., carbon-14), you can work backwards and calculate the number of years since the organism died.  

A is <em>wrong</em>. You use a balance to determine the mass of the fossil.

C is <em>wrong</em>. The level of radiation tells you nothing about the species of the fossil.

D is <em>wrong.</em> You use a radiation detector to determine if a fossil is radioactive.

ki77a [65]3 years ago
4 0

That would be to find the age of the fossil. Its called radiometric dating.

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Can someone help me and explain why they got what they got?
allsm [11]

Answer:

24.32 amu

Explanation:

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

Isotope A (Mg–24):

Mass of A = 24 amu

Abundance (A%) = 79%

Isotope B (Mg–25):

Mass of B = 25 amu

Abundance (B%) = 10%

Isotope C (Mg–26):

Mass of C = 26 amu

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Average atomic mass = [(Mass of A × A%)/100] + [(Mass of B × B%)/100] + [(Mass of C × C%)/100]

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7 0
3 years ago
What is the best description of how heat is transferred from deep in the earth to the surface?
Lana71 [14]

Answer:

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3 years ago
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Answer:

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Explanation:

Hello there!

In this case, since redox reactions are characterized by the presence of a reduction reaction, whereby the oxidation of the element decreases, and an oxidation reaction whereby the oxidation of the element increases.

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MnO_4^-+8H^++5e^-\rightarrow Mn^{2+}+4H_2O

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