Please help due today
...
Answers: 2
Chemistry, 22.06.2019 07:30
11. phosphorus-32 is radioactive and has a half life of 14 days. how much of a 124 mg sample of phosphorus-32 is present after 56 days? a) 7.75 mg b) 15.5 mg c) 31.0 mg d) 62.0 mg
Answers: 3
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, 23.06.2019 00:30
What would be the original temperature of a gas that has a volume of 2.0 l and a pressure of 2.0 atm and an unknown temperature that the volume increased to 3.5 l in its pressure decreased to 1.0 atm if the final temperature is measured to be 11°c
Answers: 1
Arts, 07.01.2021 21:40
Mathematics, 07.01.2021 21:40
Mathematics, 07.01.2021 21:40
Mathematics, 07.01.2021 21:40
Mathematics, 07.01.2021 21:40
Mathematics, 07.01.2021 21:40
Mathematics, 07.01.2021 21:40
Mathematics, 07.01.2021 21:40
Advanced Placement (AP), 07.01.2021 21:40
Mathematics, 07.01.2021 21:40