Question

faça o balanceamento químico

Answer 1

a) N2 + O2 -> 2NO
b) 2NCl3 -> N2 + 3Cl2
c) 4Na + O2 -> 2Na2O

Answer 2

Resposta:

a)

N₂  +O₂   ---->  NO

a*N₂  +b*O₂   ---->  c*NO

2a=c  ==>a=c/2

2b=c  ==>b=c/2

(c/2)*N₂  +(c/2)*O₂   ---->  c*NO

Fazendo c=2

N₂  +O₂   ---->  2NO

b)

NCL₃ --------------->N₂+Cl₂

a*NCL₃  --------------->b*N₂+c*Cl₂

a=2b  ==>b=a/2

3a=2c  =>c=3a/2

a*NCL₃  --------------->(a/2)*N₂+(3a/2)*Cl₂

fazendo a=2

2NCL₃  --------------->N₂+3Cl₂

c)

Na  +O₂ ---------Na₂O

a*Na  +b*O₂ ---------c*Na₂O

a=2c  

2b=c ==>b=c/2

2c*Na  +(c/2)*O₂ ---------c*Na₂O

Fazendo c=2

4Na  +*O₂ ---------2Na₂O