Which formula corresponds to lead(II) chlorate?

Lead(II) chlorate is a compound made up of lead and the chlorate ion. First, let's analyze the components involved. Lead has multiple oxidation states, and in this case, "lead(II)" indicates that lead has a +2 charge. The chlorate ion, represented as ClO₃⁻, carries a -1 charge.

To find the correct formula, we need to balance the charges between lead and chlorate. Since lead is in the +2 oxidation state, it can combine with two chlorate ions, each having a -1 charge, to achieve electrical neutrality. Therefore, for every one lead ion, we need two chlorate ions.

The correct formula emerges as follows: one lead ion (Pb²⁺) combines with two chlorate ions (2 ClO₃⁻), resulting in Pb(ClO₃)₂. This not only accounts for the positive charge from lead but also perfectly balances the cumulative negative charge from the chlorate ions.

The other options do not correctly represent the balance of charges based on the oxidation state of lead and the charge of the chlorate ions. For example, a formula like Pb(ClO₃) would imply that there is just one chlor