What does the number 84 in the name krypton-84 represent?
b. atomic number
c. mass numb...
Chemistry, 05.01.2020 14:31, noeltan12031
What does the number 84 in the name krypton-84 represent?
b. atomic number
c. mass number
d. twice the number of protons
Answers: 1
Chemistry, 22.06.2019 18:00, LuvieAnn1886
How is energy related to the change of state represented by the model? atoms gain energy as a solid changes to a liquid. atoms gain energy as a solid changes to a gas. atoms lose energy as a solid changes to a liquid. atoms lose energy as a solid changes to a gas.
Answers: 3
Chemistry, 22.06.2019 20:00, montimcdaniel
If one fission reaction of a uranium-235 atom produced two neutrons, how many neutrons would be released if the chain reaction occurred three more times?
Answers: 1
Chemistry, 22.06.2019 21:30, leenzazou587
Liquid ammonia is produced at high temperatures and under great pressure in a tank by passing a mixture of nitrogen gas and hydrogen gas over an iron catalyst. the reaction is represented by the following equation. n2(g) + 3h2(g) → 2nh3(g) changing all but one experimental condition will affect the amount of ammonia produced. that condition is a) increasing the concentration of both reactants b) changing the temperature within the tank c) decreasing the pressure within the tank. d) increasing only the amount of nitrogen present.
Answers: 1
Chemistry, 22.06.2019 22:30, lanashanabJHsbd1099
Who discovered a pattern to the elements in 1869?
Answers: 1
History, 24.06.2019 10:00
History, 24.06.2019 10:00
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