C) energy level
Looking at quantum mechanics, we see that electrons exist at certain energy levels. When they get excited, they’ll jump from one energy state to a higher energy state and down. We can the. Look at the color it admits and determine what the energy level is.
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Answer: The partial pressure of the Kr is 320 mm Hg.
Explanation:
According to Raoult's Law , the partial pressure of each component in the solution is equal to the total pressure multiplied by its mole fraction. It is mathematically expressed as
where, 
= partial pressure of component A
= mole fraction of A
= total pressure
mole fraction of Krypton = 
Thus partial pressure of the Kr is 320 mm Hg
Answer:
The polymer called Polyethylene is used in plastic bags and film wraps.
Polyethylene is utilized in the bottles, electrical insulation, toys, etc.
Polyvinyl Chloride(PVC) is used in siding, pipes, flooring purposes.
The synthetic polymer Polystyrene is used in cabinets and in packaging.
Explanation:
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