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If a 40 gram sample of radioactive isotope was present at 4pm, but a 5 gram sample remained at 4:30 pm, what is the half-life in
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2. asked by Jason
3. 569 views
Plaster of Paris is the compound calcium sulfate hemihydrate, CaSO4*1/2H2OWhat mass of water is liberated when a 2.763 gram
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2. asked by Roy
3. 1,514 views
4.1 x 10^3 bacteria are measured in a sand sample that weights 1 gram. Express in scientific notation the amount of the bacteria
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2. 18 views
Which object will experience the least amount of gravitational attraction toward Earth?(1 point) Responses a 40-gram eraser a
1. 1 answer
2. 9 views
a sample of iron are is known as Fe3O4. A 50 gram of sample contain 26 gram of Fe. Determine % yield Fe3O4 In sample
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2. asked by Fakhrywik
3. 1,090 views
suppose you have a sample of clamshell at a paleoindian site and you measure the 14c activity of aa 100-gram sample of carbon as
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2. asked by jon
3. 568 views
A sample has a activity of 0.0065 Bq per gram of carbon. (a) Find the age of the sample, assuming that the activity per gram of
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2. asked by PLEASE AND THANK YOU
3. 626 views
A sample has a activity of 0.0065 Bq per gram of carbon. (a) Find the age of the sample, assuming that the activity per gram of
1. 1 answer
2. asked by PLEASE AND THANK YOU
3. 1,050 views
Which object will experience the least amount of gravitational attraction toward Earth?(1 point)Responses a 40-gram eraser a
1. 1 answer
2. 46 views
Which object will experience the least amount of gravitational attraction toward Earth?(1 point)Responses a 380-gram cup a
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2. 27 views

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