Chemistry, 30.08.2021 01:00, kami23arap5p78v
An unknown element is a mixture of isotopes ¹²⁹X and ¹³²X. The average atomic mass of X is 131.01 amu. What is the percent abundance of ¹³²X?
Answers: 1
Chemistry, 22.06.2019 07:20, camillexv2668
2pos suppose an object in free fall is dropped from a building. its starting velocity is 0 m/s. ignoring the effects of air resistance, what is the speed (in m/s) of the object after falling 3 seconds? give your answer as a positive decimal without units. answer here
Answers: 1
Chemistry, 22.06.2019 09:20, UsedForSchool2018
Which of these statements explains the difference between nuclear binding energy and the strong nuclear force ?
Answers: 3
An unknown element is a mixture of isotopes ¹²⁹X and ¹³²X. The average atomic mass of X is 131.01 am...
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