examine the chemical reaction. what coefficient of o2 should be added so the number of atoms of oxygen is…

examine the chemical reaction. what coefficient of o2 should be added so the number of atoms of oxygen is conserved on both sides of the reaction equation? c3h8 + o2 → 4h2o + 3co2 3 5 7 10

examine the chemical reaction. what coefficient of o2 should be added so the number of atoms of oxygen is conserved on both sides of the reaction equation? c3h8 + o2 → 4h2o + 3co2 3 5 7 10

Answer

Explanation:

Step1: Count oxygen atoms on right - hand side

In $4H_2O$, the number of oxygen atoms is $4\times1 = 4$. In $3CO_2$, the number of oxygen atoms is $3\times2=6$. So the total number of oxygen atoms on the right - hand side is $4 + 6=10$.

Step2: Determine $O_2$ coefficient

Let the coefficient of $O_2$ be $x$. Each $O_2$ molecule has 2 oxygen atoms. So $2x = 10$, then $x = 5$.

Answer:

B. 5