What is the difference between "4 p" and "p4"? a) there is no difference, they both represent the same thing. b) 4 p represents four molecules and p4 represents four atoms. c) p4 represents four atoms chemically bonded together and 4 p does not. d) 4 p represents phosphorus atoms that are bonded together chemically and p4 represents one molecule

2h2o2--> 2h2o + o2

this reaction is of the spontaneous decomposition of hydrogen peroxide down into water and oxygen.

add 2 molecules of hydrogen peroxide and 2 molecules of water. since oxygen is naturally diatomic, the total number of atoms of each element is now the same on both sides of the equation so it is balanced.

this may not be entirely correct but let me know.