Answer:
The balanced chemical equation will be "[tex]NO_{2}+O\rightarrow NO+O_{2}[/tex]".
Explanation:
The given equation is:
[tex]2NO_{2}\rightarrow 2NO+O_{2}[/tex]
Step 1:
[tex]2NO_{2}\rightarrow NO+O[/tex]...(equation 1)
Step 2:
[tex]NO_{2}+O\rightarrow NO+O_{2}[/tex]...(equation 2)
On adding "equation 1" and "equation 2", we get
⇒ [tex]NO_{2}+NO_{2}+O\rightarrow NO+O+NO+O_{2}[/tex]
⇒ [tex]2NO_{2}\rightarrow 2NO+O_{2}[/tex]
The second step:
⇒ [tex]NO_{2}+O\rightarrow NO+O_{2}[/tex]