1. Cuprous chloride (Copper [I] chloride)   Hint Hint       2. Potassium hydroxide   Hint       3. Plumbous oxide (Lead [II] oxide)   Hint       4. Zinc sulfide   Hint       5. Potassium chloride   Hint       6. Argentous bromide (Silver [I] bromide)   Hint       7. Hydrochloric acid (Hydrogen chloride)   Hint