* Iron(III): This tells us the iron ion has a +3 charge (Fe³⁺).
* Chlorate: The chlorate ion has a -1 charge (ClO₃⁻).
* Heptahydrate: This indicates there are seven water molecules (H₂O) associated with each formula unit.
To balance the charges:
* We need three chlorate ions (3 x -1 = -3) to balance the +3 charge of the iron ion.
* The formula for iron(III) chlorate is Fe(ClO₃)₃.
Putting it all together:
The formula for iron(III) chlorate heptahydrate is Fe(ClO₃)₃ ⋅ 7H₂O.
