The light emitted by an electron moving from a higher to a lower energy level has a frequency directly proportional to the energy change in the electron.
Add 2 that’s why and I said if
<span>The number of moles of Cl- ions needed to combine completely with 0.25 mole of Mg+2 ions is:
0.50.</span>
The configuration for chlorine is: Cl <span>1s2 2s2</span><span> 2p</span>6 <span>3s2</span><span> 3p</span>5<span> or the abbreviated method is: Cl [Ne] </span><span>3s2</span><span> 3p</span>5<span>.</span>
Answer:
grams O₂ = 134 grams
Explanation:
PV = nRT => n = PV/RT
P = 8.15atm
V = 12.2 Liters
R = 0.08206L·atm/mol·K
T = 16.0°C + 273 = 289K
n = (8.15atm)(12.2L)/(0.08206L·atm/mol·K)(289K) = 4.2 moles O₂
grams O₂ = 4.2 moles O₂ x 32g/mol = 134 grams O₂