Chemistry, 26.06.2019 23:00 cristianTalonzo
Cobalt-63 has a half-life of 5.3 years. if a pellet that has been in storage for 15.9 years contains 40.0g of cobalt-63, how much of this radioisotope was present when the pellet was put into storage? show work.
Answers: 1
Chemistry, 22.06.2019 15:30, dylannhandy
Using the first volume and temperature reading on the table as v1 and t1, solve for the unknown values in the table below. remember to use the rules of significant figures when entering your numeric response.
Answers: 2
Chemistry, 23.06.2019 10:00, LlayahHarbin
The temperature of a lead fishing weight rises from 26 °c to 38 °c as it absorbs 11.3 j of heat. what is the mass of the fishing weight in grams?
Answers: 2
Chemistry, 23.06.2019 15:00, swelch2010
The atoms in a have a definite volume, but move quickly enough to overcome the forces of attraction between them. a. solid b. liquid c. gas
Answers: 2
Cobalt-63 has a half-life of 5.3 years. if a pellet that has been in storage for 15.9 years contains...
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