Register
What percentage of a substance remains after 7 half-lives have passed? A. 0.39 B. 2.5 C. 1.25 D. 0.78
216k views
1 vote
What percentage of a substance remains after 7 half-lives have passed?

A. 0.39
B. 2.5
C. 1.25
D. 0.78

User Franckysnow
by
4.3k points

1 Answer

2 votes

Answer:

Not really sure, buts its either B or C.

User Florian Loitsch
by
4.2k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

4.5m questions

5.9m answers

Other Questions

What is the variable for this number 22.4L?
Suppose a flask is filled with of , of and of . The following reaction becomes possible: The equilibrium constant for this reaction is at the temperature of the flask. Calculate the equilibrium molarity
What mass of 2-naphthol would have to be ingested by each rat in a sample set of rats in order to kill half the population of rats? Assume each rat weighs 230 g. Show your calculations for full credit.
1. If temperature is increased, the number of collisions per second do what
What color flame did lead nitrate produce? yellow-red blue green purple
Link Copied!