The oxd state of O is -2
the oxidation state, of O2 is(-2)2
the oxd state of Se will be +4
the oxd state of compound will be zero
Answer:
Look at sheet
Explanation:
Ight so like I'm too lazy to type this out just look at my work. Idk why it works I just know it works
To answer this question, we can use the following equation:

where e is the energy change, h is Planck's constant, c is the speed of light (m/s), and lambda is wavelength in meters. So then we can plug in the information:



So the energy that is omitted by the atom is
.
What statement?
Light moves faster through a vacuum because no particles are existent to absorb it.