When are elements heavier than iron formed by stars?(1 point)
1. in small, old stars
2. as a...
Chemistry, 16.12.2021 21:10 kathlynskare06
When are elements heavier than iron formed by stars?(1 point)
1. in small, old stars
2. as a dying star explodes
3. as a star is first formed
4. in young stars
Answers: 2
Chemistry, 22.06.2019 09:30
Melissa is interested in her family tree and how her family has changed over its many generations. melissa probably more closely resembles
Answers: 2
Chemistry, 22.06.2019 17:00
Reduction is a reaction which results in a in electrons and a in positive charge of the atom or ion 1) a- loss 1) b- gain 2) a-increase 2) b-decrease
Answers: 1
Chemistry, 22.06.2019 17:10
)benzene and toluene form nearly ideal solutions. consider an equimolar solution of benzene and toluene. at 20 °c the vapour pressures of pure benzene and toluene are 9.9 kpa and 2.9 kpa, respectively. the solution is boiled by reducing the external pressure below the vapour pressure. calculate (i) the pressure when boiling begins, (ii) the composition of each component in the vapour, and (iii) the vapour pressure when only a few drops of liquid remain. assume that the rate of vaporization is low enough for the temperature to remain constant at 20 °c.
Answers: 1
Mathematics, 03.12.2020 21:40
Spanish, 03.12.2020 21:40
Chemistry, 03.12.2020 21:40
Mathematics, 03.12.2020 21:40
World Languages, 03.12.2020 21:40
Spanish, 03.12.2020 21:40
English, 03.12.2020 21:40
Mathematics, 03.12.2020 21:40
History, 03.12.2020 21:40
Mathematics, 03.12.2020 21:40
Business, 03.12.2020 21:40
Mathematics, 03.12.2020 21:40
Mathematics, 03.12.2020 21:40
Mathematics, 03.12.2020 21:40