Question

Consider reaction: P4(s) + O₂(g) → P₄O₁₀(s). Moles of O₂(g) needed to balance equation will be​

Answer 1

5O2 is needed to balance the equation.

Answer 2

$P4(s) + O_2(g) \: ➡ \: P_4O_10(s)$

$Given: above$

The balanced reaction will be:

$2P_2+5O_2➡P_4 O_10$

Hence 5 moles of oxygen are needed.

( for better understanding refer the image)