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Chemistry, 24.06.2019 00:50
The barium isotope 133ba has a half-life of 10.5 years. a sample begins with 1.1×1010 133ba atoms. how many are left after (a) 6 years, (b) 10 years, and (c) 200 years?
Answers: 1
Chemistry, 24.06.2019 01:00
Gabe amodeo, a nuclear physicist, needs 8080 liters of a 3030% acid solution. he currently has a 20 %20% solution and a 60 %60% solution. how many liters of each does he need to make the needed 8080 liters of 3030% acid solution?
Answers: 1
What is the mass in amu of 635 atoms of hydrogen?...
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