Hello.
Energy is absorbed by the atom.
Emission lines occur only in the case of transitions from higher to lower energy levels in which energy is emitted.
Have a nice day
V represent volt which is the symbol of voltage.
Propane is C3H8
So Molar mass propane = 3*12 + 8*1 = 44 <span>
No. of moles of propane = 167/44 = 3.795 moles</span>
From the stoichiometry: <span>
No. of moles of hydrogen = 3.795 moles * (8 moles
hydrogen / 1 mole propane) = 30.36 moles
Using Avogadros number, 1 mole of any substance
contains 6.022 x 10^23 atoms, therefore:
<span>No. of hydrogen atoms = 30.36 * 6.022 x 10^23 =
1.828 x 10^25 atoms</span></span>
Time t=270 minutes=270/60=9/2 hours
distance s=63 miles
average speed v=s/t=63 ÷

=63×

=14 miles/hour
The question to your answer is Single replacement reactions may 6e redox