Question

Balance the combustion reaction between propane and oxygen. If a coefficient of "1" is required, choose "blank" for that box.

C3H8 + O2 → CO2 + H2O

Answer 1

C3H8+5O2=3CO2+4H2O BALANÇEAMENTO CORRETO 

Answer 2

Answer:
`C_3H_8+5O_2 \rightarrow 3CO_2+4H_2O`

Step-by-step explanation: The combustion reaction between propane and oxygen leads to formation of carbon dioxide and water.

Law of Conservation of mass states that the mass will remain constant for a balanced equation. This is carried out when the total number of atoms on reactant side is same as the total number of atoms on the product side. Thus the equation must be balanced.

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