* Subscripts: The subscript "2" outside the parentheses indicates that the entire ClO₃ group appears twice in the compound.
* Oxygen per group: The subscript "3" in ClO₃ indicates that there are three oxygen atoms in each chlorate (ClO₃) group.
Calculation:
* Two chlorate groups (ClO₃)₂ * Three oxygen atoms per chlorate group = 6 oxygen atoms
Therefore, there are 6 oxygen atoms in Zn(ClO₃)₂.
