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blagie [28]
3 years ago
8

If the half life of a radioactive isotope is 4000 years, how much would be left in a fossil after 4000 years

Chemistry
1 answer:
mamaluj [8]3 years ago
5 0
Since the half life of the radioactive isotope is 4,000 years, after 4,000 years the amount of the isotope would decrease by half. (Hence the name, half life.) So, after 4,000 years, there would be half of the isotope left in the fossil.
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What is the mass of a wooden block with a density 2.0 and a volume of 7.0? (Need answer ASAP!!)
Scorpion4ik [409]

Answer:

mass= 14kg

Explanation:

density= mass/volume

so that means mass= volume x density

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Hope this helps

5 0
3 years ago
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Leviafan [203]

Answer:

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Explanation:

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Now all we need to do is change the sign of Eº reduction for the species being oxidized ( Fe²⁺ ) and add it to Eº reduction  O₂:

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5 0
3 years ago
One gram of carbon contains 50,200,000,000,000,000,000,000 atoms. express the number of carbon atoms in scientific notation
german
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calculation check:

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3 years ago
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