Question

Which of the following equations is balanced?

O 2A1+302Al₂O3
O N₂ + 2H₂ → 2NH3
O CH4 + 30₂ → CO₂ + 2H₂ O2Fe2O3 + 3C→ 4Fe + 3C0₂

Answer 1

∵ 2Fe₂O₃+3C ⇒ 4Fe+3CO₂.

Step-by-step explanation:

if the given equatioins are:

`2Al+3O_2=2Al_2O_3;\\ N_2+2H_2=2NH_3;\\ CH_4+3O_2=CO_2+2H_2;\\2Fe_2O_3+3C=4Fe+3CO_2.`

then the last on is balanced: Fe is 4, O is 6 and C is 3 on the both sides of equations.