When the following equation is balanced, #K(s) + H_2O(l) -> KOH(aq) + H_2(g)#, what is the coefficient of #H_2#?
The coefficient go
By looking at this equation, we can notice that we have
In order to balance this equation, we can multiply the
This way, we will have
Since we prefer to have the coefficients as whole numbers and not fractions, we can multiply the entire reaction by