Question

the image shows the combustion of methane. which equation represents this chemical reaction? a. ch₄ + o₂ → co₂ + h₂o b. 2ch₄ + 2o₂ → co₂ + 2h₂o c. ch₄ + 2o₂ → 2co₂ + h₂o d. ch₄ + o₂ → 2co₂ + 2h₂o e. ch₄ + 2o₂ → co₂ + 2h₂o

Explanation:

Step1: Identify reactants and products

Methane ($CH_4$) reacts with oxygen ($O_2$) to form carbon - dioxide ($CO_2$) and water ($H_2O$).

Step2: Balance the equation

For carbon: 1 carbon in $CH_4$ gives 1 $CO_2$. For hydrogen: 4 hydrogens in $CH_4$ give 2 $H_2O$. For oxygen: 2 $O_2$ provide enough oxygen for 1 $CO_2$ and 2 $H_2O$. The balanced equation is $CH_4 + 2O_2
ightarrow CO_2+2H_2O$.

Answer:

E. $CH_4 + 2O_2
ightarrow CO_2 + 2H_2O$