Chemistry, 31.08.2019 02:10 lionessny6301
The half life for the decay of carbon-14 is 5.73 x 10° years. suppose the activity due to the radioactive decay of the carbon-14 in a tiny sample of an artifact made of wood from an archeological dig is measured to be 42. bq. the activity in a similar-sized sample of fresh wood is measured to be 45. bq. calculate the age of the artifact. round your answer to 2 significant digits. years ?
Answers: 2
Chemistry, 22.06.2019 00:00
Several kinds of bears are found on earth. most bears are brown or black, but one type of bear, the polar bear, is white. what process led to this difference in fur color? explain your answer.
Answers: 1
Chemistry, 22.06.2019 08:00
Joe shines white light into a bowl half full of water at an angle of incident of 27.5°. calculate the angle of refraction in the water given the indices of refraction for air and water are 1.00 and 1.36, respectively.
Answers: 2
Chemistry, 22.06.2019 18:00
Hydrogenation reactions, in which h2 and an "unsaturated" organic compound combine, are used in the food, fuel, and polymer industries. in the simplest case, ethene (c2h4) and h2 form ethane (c2h6). if 140 kj is given off per mole of c2h4 reacting, how much heat (in mj) is released when 12 kg of c2h6 forms?
Answers: 2
Chemistry, 22.06.2019 22:00
Pls ill give u brainliest which of the following is true about science? 1. political conditions are unable to influence it. 2. economic concerns may prevent it from solving problems.
Answers: 2
The half life for the decay of carbon-14 is 5.73 x 10° years. suppose the activity due to the radioa...
Mathematics, 15.04.2020 21:42
Spanish, 15.04.2020 21:42
Chemistry, 15.04.2020 21:42
Mathematics, 15.04.2020 21:42
History, 15.04.2020 21:42
Social Studies, 15.04.2020 21:42
History, 15.04.2020 21:42
Mathematics, 15.04.2020 21:42