Answer:
A
Explanation:
Hydrogen and chlorine need to be balanced. There is an equal amount of magnesium on each side
Answer
to do homework or not
Explanation:
you can figure it out in one second
Answer:
V = 34.55 L
Explanation:
Given that,
No of moles, n = 1.4
Temperature, T = 20°C = 20 + 273 = 293 K
Pressure, P = 0.974 atm
We need to find the volume of the gas. It can be calculated using Ideal gas equation which is :
PV=nRT
R is gas constant, 
Finding for V,
So, the volume of the gas is 34.55 L.
The atom would have to contain the same amount of electrons in both the ground start and the excited state. If you count up the electrons in that configuration, there are 7 electrons. The atom with 7 electrons is Nitrogen. If you look at the configuration for Nitrogen, it is 2-5. So assuming you know how to write electron configurations out, your answer would be this:
<span>Nitrogen (N) = 1s2 2s2 2p3 in the ground state. Count those electrons up and you still have 7 electrons. Excited state is when an atom moves to a higher energy level. You'll still have the same number of electrons.</span>
