Question

Propane is often used in stoves and cooktops as a source of heat. The combustion of propane yields water and carbon

Answer 1

Answer: 3 molecules of carbon dioxide and 4 molecules of water are produced during the combustion of propane.

Explanation:

According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced.

The balanced chemical reaction for combustion of propane is:

$C_3H_8+5O_2\rightarrow 3CO_2+4H_2O$

3 molecules of carbon dioxide and 4 molecules of water are produced during the combustion of propane.