Question

If the half-life of a 20.0g is known to be 24 minutes, how long will it take for only 5.0 grams of the sample to remain

A.6 minutes
B.24 minutes
C.48 minutes
D.96 minutes

I NEED HELP!!!!

Answer 1

IS IT.....C?

Answer 2

5g is 1/4 of 20g, so that's 2 half-lives

2x24 = 48 minutes, so you are correct.

Answer 3

Hey! That's just what I'm trying to figure out! Maybe you ca help me!

Answer 4

i think its c but i'm not sure science is not my strong suit. this one is difficult.

Answer 5

Its c

Answer 6

i realy dont know

Answer 7

Answers are
b
d
d
c 100%

Answer 8

masta yoda is true
b
d
d
c

Answer 9

B
D
D
C
Is right!

Answer 10

4/4 100% B,D,D,C

Answer 11

B
D
D
C
4/4 100%

Answer 12

for me it was
A,D,D,C so if you want a 100% copy me

Answer 13

B
D
D
C
For connexus bumbumBUM