Chemistry, 18.07.2019 07:00 Nicaragua505
Apiece of charcoal used for cooking is found at the remains of an ancient campsite. a 0.94 kg sample of carbon from the wood has an activity of 1580 decays per minute. find the age of the charcoal. living material has an activity of 15 decays/minute per gram of carbon present and the half-life of 14c is 5730 y. answer
Answers: 1
Chemistry, 22.06.2019 00:30, megaaan214p61pb7
Which compounds have the empirical formula ch2o? a. c2h4o2 b. c3h6o3 c. ch2o2 d. c5h10o5 e. c6h12o6
Answers: 3
Chemistry, 22.06.2019 23:10, carmenguabaoql9kv
Afusion reaction takes place between carbon and another element. neutrons are released, and a different element is formed. the different element is a) lighter than helium. b)heavier than helium. c)the same weight as helium. d)dependent on the element that reacted with carbon.
Answers: 3
Chemistry, 23.06.2019 03:00, Cheyenne7327
Analyze the reaction to determine whether the reaction is exothermic or endothermic. explain your reasoning.
Answers: 1
Apiece of charcoal used for cooking is found at the remains of an ancient campsite. a 0.94 kg sample...
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