# What is the coefficient of oxygen gas after balancing the following equation, P(s) + O_2 -> P_2O_5(s)?

Aug 7, 2016

5/2? Of course the $P$ coefficient has to be changed as well.
${P}_{4} \left(s\right) + 5 {O}_{2} \left(g\right) \rightarrow {P}_{4} {O}_{10} \left(s\right)$