Chemistry, 25.08.2019 08:10 makaylahunt
An electron in a hydrogen atom moves from level 3 to level 1. in a second hydrogen atom, an electron drops from level 2 to level 1. which statement describes the most likely result?
the first atom emits light with more energy.
the second atom emits light with more energy.
the first and second atoms absorb energy without emitting light.
the first and second atoms emit light with the same amount of energy.
Answers: 2
Chemistry, 22.06.2019 10:50
8) a mixture of he, ne and ar has a pressure of 7.85 atm. if the ne has a mole fraction of 0.47 and 8) ar has a mole fraction of 0.23, what is the pressure of he? a) 4.2 atm b) 3.7 atm c) 5.5 atm d) 2.4 atm e) 1.8 atm
Answers: 1
Chemistry, 22.06.2019 14:30
In water, a strong acid will break down into its component parts. a. completely b. partly c. never in water, a weak base will break down into its component parts. a. completely b. partly c. never
Answers: 2
Chemistry, 22.06.2019 14:30
1) describe the physical layout of the ocean floor ? 2) explain how the dumbo octopus swims differently than other octopus species and why this would be an advantage in the aphonic zone . 3) why are the types of organisms that live at each underwater hot vent so dramatically different ?
Answers: 3
An electron in a hydrogen atom moves from level 3 to level 1. in a second hydrogen atom, an electron...
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