Can someone me i suck at chemistry.
15. the radioisotope radon-222 has a half-life of...
Chemistry, 03.02.2020 22:59 erica11223344
Can someone me i suck at chemistry.
15. the radioisotope radon-222 has a half-life of 3.8 days. how much of a 198.6 g sample of radon-222 would be left after approximately 23 days? (show your work)
16. how can an element be artificially transmuted? give an example that has an element and what it is transmuted into.
17. why does the mass and charge of an alpha particle make it less penetrating than a beta or gamma? discuss both the mass and the charge?
Answers: 1
Chemistry, 21.06.2019 18:30
In a sample of oxygen gas at room temperature, the average kinetic energy of all the balls stays constant. which postulate of kinetic molecular theory best explains how this is possible?
Answers: 2
Chemistry, 22.06.2019 00:30
Used the balanced equation 2h2+ o2 - -> 2h2o. if you have 7.2 grams of o2 , how many grams of h2o can you produce ?
Answers: 2
Chemistry, 23.06.2019 00:00
How many atoms or molecules are there in a mole of a substance?
Answers: 1
Chemistry, 23.06.2019 08:00
Drag each pressure unit with the corresponding number to describe standard atmospheric pressure
Answers: 1
Mathematics, 24.11.2020 07:40
Mathematics, 24.11.2020 07:40
Mathematics, 24.11.2020 07:40
Biology, 24.11.2020 07:40
Biology, 24.11.2020 07:40
Mathematics, 24.11.2020 07:40
Biology, 24.11.2020 07:40
English, 24.11.2020 07:40
Mathematics, 24.11.2020 07:40