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amm1812
3 years ago
8

After three half-lives, what fraction of a radioactive sample remains? 1/8 1/3 1/2 1/6

Chemistry
2 answers:
Scilla [17]3 years ago
6 0
1/8 got it from Yahoo answers and the answer was highlighted with 4 likes.... so most likely thats it
marysya [2.9K]3 years ago
6 0

1/8 got it that guy in my house

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kotegsom [21]

Answer:

electrons

Explanation:

metals do what is called metallic bond

8 0
3 years ago
What has its own size and shape
erma4kov [3.2K]
I guess it is gases
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8 0
3 years ago
All of these are examples of an animal maintaining homeostasis EXCEPT:
Pie

Answer:

A whale bleeding from a cut.

Explanation:

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3 0
3 years ago
How many moles of magnesium, Mg, are there in 4.75 grams of magnesium?
Nina [5.8K]
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1 mole mg ------------ 24.3 g
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hope this helps!
3 0
3 years ago
Lithium-6 has a mass of 6.0151 amu and lithium-7 has a mass of 7.0160 amu. The relative abundance of Li-6 is 7.42% and the relat
horsena [70]
Average atomic mass is the weighted average atomic masses with regard to the relative abundance of the isotopes 
average atomic mass of Li = relative abundance of Li-6 x mass of Li-6 + relative abundance of Li-7 x mass of Li-7
average atomic mass of Li = (7.42% x 6.0151 a.m.u) + (92.58% x 7.0160 a.m.u)
                                           = 0.446 + 6.495
                                           = 6.941 amu
average atomic mass of Li is 6.941 amu
3 0
3 years ago
Read 2 more answers
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