Answer:
P4+ 3O2 --->2P2O3
Step-by-step explanation:
left side:
right side :
to balance:
- since there is 4 P at left , thus right side need 4P :P2×2 = 2P2 , now u get 4 P at the right and left
- since at right , P2O3 has been ×2 , O2 now has 6 , thus left side need 6 O too :O2×3= 3O2 , now you get 6 O at the left and right