(b) Photoelectron spectroscopy data for the 1s sublevel of Se and the 1s sublevel of Po are represented below. In terms of Coulomb's law and atomic structure, explain why the peak for Po is positioned so far to the left of the
peak for Se.
Relative Number
of Electrons
Se
CH
10,000
2000
8000 6000 4000
Binding Energy (MJ/mol)
on
sen
Relative Number
of Electrons
Ро
10,000
8000 6000 4000
Binding Energy (MJ/mol)
2000

what is the volume occupied by 40 grams of argon gas (ar) at standard conditions? what volume, in liters, is occupied by 1.5 x 1023 

2fe + 3h2so4 -> fe2(so4)3 + 3h2

it is necessary to balance equations in order to get the proper amount of reactants as well as products in order not to make a miscalculation.

you cannot change the subscripts as that would change the substance itself. for instance, diatomic elements such as h2 only have the subscript two when a gas. another example would be so4, if you were to change the subscript, the element would no longer be sulfate.

we change the coefficients instead as that only changes the number of molecules rather than the substance itself.

hope this !

question: ray weighs 100 kilograms, his wrestling partner, bobby, weighs 50 kilograms. if ray moves at 4 m s , how fast will bobby have to run at him to apply an equal amount of kinetic energy?

answer: 8 m/s he needs to run twice as fast to keep up so he has some work to do

explanation:   if the mass has units of kilograms and the velocity of meters per second, the kinetic energy has units of kilograms-meters squared per second squared.

question answered by

(jacemorris04)