Question

http://prntscr.com/d3x6tl PLEASE HELP ME ASAP!!

Answer 1

the half-life of a material is the amount of time required in order for the material to lose 1/2 of its mass

Answer 2

so what's the answer?

Answer 3

don't expect a direct answer, honey

Answer 4

Don't call me honey :)

Answer 5

ok sweaty :)

Answer 6

Hi there,
Welcome to OpenStudy!

Please do not ask for only answers, as such is strictly against our Anti-Cheating Policy.
Please try to work with those who are assisting you so that you can really learn and understand the material.

Thanks,
-Whitemonsterbunny17

Answer 7

ok. I'm so sorry im new

Answer 8

didn't know

Answer 9

Hint: substance C loses half its mass, due to radioactivity , faster than the other 2

Answer 10

after 3 days it losses 1/2 its original mass
- after 6 days it has lost 3/4 of its original mass , after 9 days it has lost 7/8 of its mass and so on...

Answer 11

thanks! :)