Chemical Equation:
The chemical equation for the reaction between lead (II) sulfide (pbS) and ozone (O3) is as follows:

pbS + O3 → PbSO4

Explanation:
The reaction between lead (II) sulfide and ozone is an oxidation-reduction reaction. The lead (II) sulfide is oxidized to lead (II) sulfate, while the ozone is reduced to oxygen gas. This reaction can be understood in the following steps:

1. PbS is a solid compound that is insoluble in water. When it is mixed with ozone, the ozone oxidizes the lead (II) sulfide to lead (II) sulfate.

2. The oxidation of lead (II) sulfide by ozone produces lead (II) sulfate and oxygen gas. The oxygen gas is released as a product of the reaction.

3. The reaction between lead (II) sulfide and ozone is a redox reaction because the lead (II) sulfide is oxidized and the ozone is reduced. The lead (II) sulfide loses electrons, while the ozone gains electrons.

4. Lead (II) sulfate is a white solid compound that is soluble in water. It is commonly used as a pigment in paints and in the production of lead-acid batteries.

Conclusion:
The reaction between lead (II) sulfide and ozone is an oxidation-reduction reaction that produces lead (II) sulfate and oxygen gas. This reaction is important in the production of lead-acid batteries and in the synthesis of pigments.