s26957639 s26957639

12-04-2021
Chemistry

contestada

I NEED HELP PLS HURRY!
Element “R” has a half-life of 2 minutes. After 6 minutes, how much of a 100 g sample would remain?

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carolinebuckle carolinebuckle

13-04-2021

Answer:

12.5 g

Explanation:

If element R's half life is 2 minutes then we need to divide 100 g by 1/2 3 times. 100/2 = 50/2= 25/2= 12.5 g.

Hope this helps!

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brody3360 brody3360

15-04-2021

answer to this question is 12.5kg

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