Answer:
See explanation
Explanation:
The third and fourth elements in the first transition series are vanadium and chromium. They contain 23 and 24 electrons respectively.
In universe L, the electron configuration of vanadium is;
[X] 3d3 4s2
In universe L, the electron configuration of chromium is;
[X] 3d4 4s2
The electron configuration of chromium has to change since there are four instead of five d orbitals in universe L.
NO2- +7H+ + 6e->> NH3 + 2H2O ( N goes from +3 to -3)
<span>Al + 2 H2O >> AlO2- + 4H+ + 3e- </span>
<span>NO2- + 2Al + 2H2O >> NH3 + 2AlO2- + H+ </span>
<span>add OH- on the left and on the right </span>
<span>NO2- + 2 Al + H2O + OH- >> NH3 + 2 AlO2-</span>
Answer:
2c +o2=2co
Explanation:
Check and u will see that all the elements in the left side of the chemical reaction are equal to those on the right
TTTTTTTTTTTTNSNSKDKDLDDHKD
Answer:
Acceptable Lewis structure of Diatomic Nitrogen Molecule is as follow,
:N≡N:
Explanation:
The given lewis structure is acceptable because each nitrogen atom has a complete octet and and the formal charge of each nitrogen atom is zero. So those lewis structures which has zero or least formal charges are said to be more stable and acceptable. The formal charge is calculated is,
Formal Charge = # of Valence e⁻s - [# of non-bonded e⁻ + 1/2 # of bonded e⁻]
For N,
Formal Charge = 5 - [ 2 + 6/2]
Formal Charge = 5 - [ 2 + 3 ]
Formal Charge = 5 - 5
Formal Charge = 0
Same result will come for the second N atom.
