Chemistry, 03.07.2019 19:40 ayoismeisalex
Geologists can estimate the age of rocks by their uranium-238 content. the uranium is incorporated in the rock as it hardens and then decays with first-order kinetics and a half-life of 4.5 billion years. a rock is found to contain 82.6% of the amount of uranium-238 that it contained when it was formed. (the amount that the rock contained when it was formed can be deduced from the presence of the decay products of u−238.)
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Chemistry, 21.06.2019 17:30
Given that the molar mass of nano3 is 85.00 g/mol, what mass of nano3 is needed to make 4.50 l of a 1.50 m nano3solution? use .6.75 g18.9 g255 g574 g
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Chemistry, 22.06.2019 18:10
Measurements that have similar values are: a. usually accurate b. sometimes accurate c. always accurate d. never accurate
Answers: 1
Geologists can estimate the age of rocks by their uranium-238 content. the uranium is incorporated i...
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