The first compound is sulfur dioxide and the latter is sulfur trioxide.
sulfur and oxygen
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.
Formula: SO3
SO3 is the chemical formula for sulfur trioxide.
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
3 and SO3 is an anion with a +1 charge
SO3 is sulfur trioxide.
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
The balanced equation for the reaction between SO3 and H2O is: SO3 + H2O → H2SO4
SO3 is the sulfate radical; it contains sulfur and oxygen.
Al2(SO3)3 = aluminum sulfite
Sulfurous acid: sulfite, (SO3)-2 Chlorous acid: chlorite, (ClO2)-