You are dating rocks by their proportion of parent isotope potassium-40 (half-life time 1.25 billion years) and daughter isotope argon-40. If the rock initially was made of only potassium-40, find the age for each of the following (explain your reasoning): a) A rock containing equal amount of potassium-40 and Argon-40. b) A rock that contain three times as much argon-40 as potassium-40
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Chemistry, 22.06.2019 09:00
Chemical energy is a form of a. kinetic energy only. b. both potential and kinetic energy. c. neither potential nor kinetic energy. d. potential energy only. reset
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Chemistry, 22.06.2019 19:30
To calculate percent by mass, use the equation below: calculate the percent by mass of each element. %n = % %h = % %o = %
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You are dating rocks by their proportion of parent isotope potassium-40 (half-life time 1.25 billion...
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