The balanced equation :
C₃H₈(g)+5O₂(g)→3CO₂(g)+4H₂O(g)
Further explanation
Given
The reaction of Propane(combustion)
Required
Balanced equation
Solution
Reaction
C₃H₈(g)+O₂(g)→CO₂(g)+H₂O(g)
Give a coefficient(the most complex compound = 1) :
C₃H₈(g)+aO₂(g)→bCO₂(g)+cH₂O(g)
Make an equation :
C, left = 3, right=b⇒b=3
H, left = 8, right=2c⇒2c=8⇒c=4
O, left = 2a, right=2b+c⇒2a=2b+c⇒2a=2.3+4⇒2a=10⇒a=5
The equation becomes :
C₃H₈(g)+5O₂(g)→3CO₂(g)+4H₂O(g)
