WHy OXygen can react with metal?

by no idea
Tags: metal, oxygen, react
no idea
no idea is offline
Oct29-04, 08:16 AM
P: 93
WHy OXygen can react with metal?As i know , oxygen(O2) is bonded by covalent bond and it should be neutral charge. So how can the metal react with oxygen?
Phys.Org News Partner Chemistry news on Phys.org
Recycling industrial waste water: Scientists discover a new method of producing hydrogen
Making radiation-proof materials for electronics, power plants
A greener source of polyester?cork trees
Miracles is offline
Oct29-04, 08:38 AM
P: 5
The difference of electronegativity between iron and oxygen is greater than the one between two oxygens. That means the attraction between iron and oxygen is higher. As a result, the covalent bond between the oxygen ions break and create an ionic bond with iron.
chem_tr is offline
Oct29-04, 09:37 AM
Sci Advisor
PF Gold
chem_tr's Avatar
P: 613
Hello Miracles, you are right. However, there is one more thing; metal and molecular oxygen react in solution, that is, a very thin aqueous film formed by humidity on iron dissolves some of iron with the aid of molecular oxygen dissolved in that film. Iron has a greater stability in 3+ state, so eventually a significant amount of iron is oxidized to Fe(OH)3.

The same thing does not operate well in copper; we call the effect as "passive film formation".

Register to reply

Related Discussions
Why does the OH react with HA and not H3O+? Biology, Chemistry & Other Homework 2
How do you react when you're stuck on something? Academic Guidance 18
How do they react? Biology, Chemistry & Other Homework 5
Elements that react with crystalline Chemistry 10
Would a noble gas react with a radical? Chemistry 2