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If 14 g of a radioactive substance are present initially and 7 years later only 7 g remain, how much of the substance will be present after 9 yr?
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5 votes
If 14 g of a radioactive substance are present initially and 7 years later only 7 g remain, how much of the substance will be present after 9

yr?

User Max Schmidt
by
7.3k points

1 Answer

2 votes

Answer:

5g

Explanation:

14-9=5

User Ivangtorre
by
7.9k points
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