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3 years ago

12

A chemist begins with 120 mL of a radioactive substance that decays exponentially. After 24 hours, only 30 mL of the substance r

emain. How many mL will remain after 48 hours? 12.5 mL 7.5 mL 4.5 mL 9.5 mL

1 answer:

alisha [4.7K]3 years ago

6 0

Answer:

7.5 mL

Step-by-step explanation:

If it decays exponentially then you divide the previous number by 4 to get the next number and 30 divided by 4 is 7.5mL.

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