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Chemistry, 21.06.2019 12:30
Asample contains 16.75 g of the radioisotope u-236 and 50.25 g of its daughter isotope, th-232. how long did it take for decay to take place if one half-life of u-236 is 23 million years? 46 million years 69 million years 92 million years 115 million years
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Chemistry, 21.06.2019 23:00
50 pts plz what is the physical state of matter of baking soda.
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Chemistry, 22.06.2019 01:30
There are main groups in the modern periodic table of elements
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The molar mass of vitamin a (c20h30o)....
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