Answer:
C15H12 + 12 O2 → 15 CO2 + 6 H2O
Step-by-step explanation:
The balanced chemical equation for the combustion of C15H12 (a hydrocarbon also known as naphthalene) with oxygen (O2) to produce carbon dioxide (CO2) and water (H2O) is:
C15H12 + 12 O2 → 15 CO2 + 6 H2O
This equation is balanced because the number of carbon atoms, hydrogen atoms, and oxygen atoms is the same on both sides of the equation.
On the reactant side, there are 15 carbon atoms, 12 x 2 = 24 hydrogen atoms, and 2 x 12 = 24 oxygen atoms.
On the product side, there are 15 carbon atoms, 6 x 2 = 12 hydrogen atoms, and 2 x 15 = 30 oxygen atoms.
By multiplying the coefficients in the equation by appropriate integers, we can balance the number of atoms of each element on both sides of the equation.