Ozone has three Oxygen atoms, Oxygen has two Oxygen atoms.
135813
Well it has to do w/ the fact that it forms up in the stratosphere.\n\nHigh levels of short wave radiation break apart oxygen molecules (O2) into 2 oxygen atoms. Since oxygen isn't stable alone, it will recombine. Sometimes it recombines w/ two other oxygen atoms to form O3 (ozone).\n\nOzone can form in the troposphere by exposing fossil fuels to solar radiation. You know, like pumping gas on a hot summer afternoon. Surface ozone is dangerous. Ozone is toxic to humans. Much less gets formed down here b/c we are much more protected from the high levels of short wave solar radiation.
284735
Peroxide is H2O2. If it were in a clear bottle, that second oxygen would evaporate and it would become H20...water.
407222
yes O2- is neon \n\nMn2+ would look like V\n\nMn2+ has 2 less electrons that Mn
503150
2Cu + O2 ---> 2CuO,          \nThis is copper oxide or cupric oxide or copper( II )oxide\n\n4 Cu + )2---> 2Cu2O\nCopper also combines with oxygen as Cu2O, cuprous oxide , or copper(I) oxide
448242
2 KBrO3 + 3 N2H4 -> 2 KBr + 3 N2 + 6 H2O\n\nYou can check by finding out the total number of atoms of both sides:\n 2 Potassium\n 2 Bromine\n 6 Oxygen\n 6 Nitrogen\n12 Hydrogen
466568
O-1 will have 9 electrons and 7 valence electrons (1s2 2s2 2p5 : the outer (valence) shell has 2 from 2s and 5 from 2p)
471896
AgNO3 means there are 3 Oxygen atoms bonded to 1 N atom, which is bonded to 1 Ag atom\n\nPb(NO3)2 means that there are 2 Nitrate ions (NO3) bonded to the Pb atom and in each nitrate ion there are 3 Oxygen atoms bonded to 1 Nitrogen atom.
155556
In truth, it is not an element. However, oxygen occurs in nature as O2. Therefore, we call it elemental oxygen.
78284
Because you have 3 hydrogen atoms one oxygen and one cl.
466312
2Mg+O2-->2MgO\n2MgO+2H2o---->2Mg(OH)2
48383
I believe they act as a catalyst for the reaction: 2(O3) -> 3(O2)\n\nNote that because they act as catalysts they are not consumed in the reaction, so the CFCs that are already in the atmosphere are there to stay.
493072
1) b)\n\n2) [H2O]^2 / 2[H2] [O2]\n  \n   [NO]^2 / [N2] [O2]\n\n3) b)\n\n4) b)
251963
hey! Air is a mixture of gases thus it is solution, it contains Nitrogen-78%, oxygen-20.9% carbon dioxide0.003% and some rare gases
394085
My guess would be that S is on the third period of the classification table, so it has one more layer of electrons.  Maybe they have more ways of rearrangind themselves than oxygen.  Even though S and O both have a valence of 6, S has more inner layers and more orbitals to play with.
342312
1)   O::C::O  for CO2 because there are total 4 valence electrons in outermost orbit of carbon so it will share 2 with each oxygen and it has 3 resonance structures\n\n2)  H . . C three electrons shared from carbon and nitrogen N\nie on one side one electron sharing by hydrogen and carbon and on other side 3-3 electrons shared by both carbon and nitrogen\n\ni hope it helps you out
123408
Ozone and Hydrogen, I think, it has been 15 years since chemistry in University
524127
a) [O 2-]\nb) [ I - ]\nc) [Na+]\nd) [Al 3+]\ne) [Ni 2+]\nf) [Mg 2+]