Chemistry, 24.07.2019 21:00 kaliyab191
Charcoal (burned wood) that was used to make prehistoric drawings on cave walls in france was scraped off and analyzed. the results were 4 mg carbon-14 (parent isotope) and 60 mg nitrogen (daughter isotope). the half-life of carbon-14 is 5,730 years. how old are the cave drawings? a. 11,460 years b. 17,190 years c. 22,920 years d. the sample is too old to be analyzed by carbon dating.
Answers: 1
Chemistry, 22.06.2019 06:30
Identify the missing numbers below to show the result of multiplying the numbers (1.6 × 10-19)(5.0 × 106) = c × 10d
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Chemistry, 22.06.2019 07:00
In the cathode ray tube experiment, j. j. thomson passed an electric current through different gases inside a cathode ray tube in the presence of an electric field. in which two ways did this experiment change scientists’ understanding of the atom?
Answers: 2
Chemistry, 22.06.2019 07:00
How heavy is thanos? a) 3000 lbs b) all of it c) the price of tea in china d) heavy enough
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Charcoal (burned wood) that was used to make prehistoric drawings on cave walls in france was scrape...
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