Chemistry, 06.07.2019 08:40 perlalimas7372
When a certain rock formed, it contained 12 mg 40k. the rock now contains 3 mg 40k. the half-life of 40k is 1.3 billion years. how old is the rock? your answer is in billions of years and should be a number only and include the tenth decimal place (e. g., 23.8 not 23.81 or 23?
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When a certain rock formed, it contained 12 mg 40k. the rock now contains 3 mg 40k. the half-life of...
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