# science

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!!!!

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3. 👁 1,942
1. IS IT.....C?

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

2x24 = 48 minutes, so you are correct.

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

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

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5. Its c

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6. i realy dont know

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b
d
d
c 100%

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8. masta yoda is true
b
d
d
c

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9. B
D
D
C
Is right!

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10. 4/4 100% B,D,D,C

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11. B
D
D
C
4/4 100%

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