<p><strong>Fig. 1.8.</strong> Hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>) easily breaks down to H<sub>2</sub>O and O<sub>2</sub> in sunlight, which is why it is stored in an opaque bottle.</p>

Fig. 1.8. Hydrogen peroxide (H2O2) easily breaks down to H2O and O2 in sunlight, which is why it is stored in an opaque bottle.

Image by Jordan Wang