Question

what happen when the phosphorus react with oxygen ​

Answer 1

When Phosphorus reacts with oxygen..

$p + o{2} = po4$

Answer 2

WHEN RED COLOURED PHOSPHORUS REACTS WITH OXYGEN THEN IT FORMS PHOSPHORUS (|||) OXIDE .

4P + 3 O2 ------------ 2 P2O3

hope it helps ........✌✌