15. Rumus kimia senyawa timbal (IV)oksida berikut ini adalah __ A. TiO_(2) D. Pb_(2)O B. TiO_(4) E. PbO_(2) C. PbO

The correct answer is **E. **. Here's why:* **Understanding the Naming Convention:** * **Lead (IV) oxide** tells us: * **Lead (Pb)** is the metal. * **(IV)** indicates the lead has a +4 oxidation state. * **Oxide** means oxygen is present as an anion (O²⁻).* **Balancing Charges:** * To balance the +4 charge of lead with the -2 charge of oxygen, we need two oxygen atoms.* **Writing the Formula:** * The formula becomes **PbO₂**.