Answer:
The coefficient of SO3 is 2
Explanation:
2SO2(g) + O2(g) —> ?SO3(g)
To know the coefficient of SO3 in the equation above, we must first balance the equation.
The equation can be balance as illustrated below:
2SO2(g) + O2(g) —> SO3(g)
There are 2 atoms of S on the left side and 1 atom on the right side. It can be balance by putting 2 in front of SO3 as shown below:
2SO2(g) + O2(g) —> 2SO3(g)
Now, we can see that the equation is balanced. Thus, the coefficient of SO3 is 2.
