\( \mathrm{P}+\mathrm{O}_{2} \rightarrow \) ?

The reaction between phosphorus (P) and oxygen (O₂) typically produces phosphorus oxides. The specific product depends on the conditions of the reaction, such as temperature and the ratio of reactants. 1. At lower temperatures, phosphorus trioxide (P₄O₆) can be formed: \[ 4 \mathrm{P} + 3 \mathrm{O}_2 \rightarrow 2 \mathrm{P}_2\mathrm{O}_3 \] 2. At higher temperatures, phosphorus pentoxide (P₂O₅) is more likely to be produced: \[ 4 \mathrm{P} + 5 \mathrm{O}_2 \rightarrow 2 \mathrm{P}_2\mathrm{O}_5 \] So, the products of the reaction can be either phosphorus trioxide (P₂O₃) or phosphorus pentoxide (P₂O₅), depending on the reaction conditions.