The first compound is sulfur dioxide and the latter is sulfur trioxide.
SO2 is sulfur dioxide, meaning that there are 2 oxygen atoms in a molecule.SO3 is sulfur trioxide, meaning that there are 3 oxygen atoms in a molecule.
sulfur and oxygen
SO3 is the chemical formula for sulfur trioxide.
Formula: SO3
SO3 = sulphur dioxide O2= oxygen SO3 = sulphur trioxide SO3- = sulphite that should be it .... right? :)
Al+3 SO3+2 <---- these are the ions and their charges Al+3 Al+3 SO3+2 SO3+2 SO3+2 <---- the charges have to add up to zero, so two +3 aluminum ions cancel out three +2 sulfite ions. Al2(SO3)3 <--- simplify
2. S(unimportant)O(xygen)2
S + o2 = so2
SO3 is sulfur trioxide.
Sulfurous acid: sulfite, (SO3)-2 Chlorous acid: chlorite, (ClO2)-
Cr+6 SO3-2 ------> these are the ions and their chargesCr+6 SO3-2 SO3-2 SO3-2 ----> the charges have to add up to zero, so three +2 sulfite ions cancels out one +6 Cr ion.Cr(SO3)3 ----> simplify
SO3 is the sulfate radical; it contains sulfur and oxygen.