Answer:
The correct answer is A :))
Answer:
she should not have multiplied the sulfur atoms by the subscript 4
Explanation:
Answer:
Choice 1. "HI to increase".
Explanation:
I found out the hard way.
The answer to this question would be: 3.125%
Half-life is the time needed for a radioactive molecule to decay half of its mass. In this case, the strontium-89 is already gone past 5 half lives. Then, the percentage of the mass left after 5 half-lives should be:
100%*(1/2^5)= 100%/32=3..125%