2. Solutions and Dissolving Rates GET JOURNALS & PAPERS Page 86

3. Essential Question Generalize the three main factors that effect dissolving rates.

4. What’s in water? Collected from underground source. Faucet Water – From city source Contains minerals, sodium fluoride, chlorine, etc… Carbonated Water – Contains dissolved carbon dioxide evenly distributed through the liquid. Distilled Water - Most minerals removed by distillation Purified further by reverse osmosis and deionization

5. A homogeneous mixture of two or more substances evenly distributed at the molecular level Cannot be filtered exists in every phase of matter. Metal solutions are called alloys. Solutions

6. Solvent – does the dissolving. Is present in the greatest amount. Solute – gets dissolved. When particles are evenly spread out, the solute has dissolved. Parts of a solution

7. Stirring Crushing Shaking Increased Temperatures Increasing solubility

8. Understanding dissolving rates has made taking medicine easier and safer. Time capsules and microencapsulati on: How does that work?

9. Smaller doses of medicine are more effective (steadier supply to body over time). Safer (less side effects) and more convenient. More cost- effective.

10. Remember…you should write 5 things you learned in complete sentences. Summarize!!!!! You have 3 minutes left.

11. Remember…you should write 5 things you learned in complete sentences. Summarize!!!!! You have 2 minutes left.

12. Remember…you should write 5 things you learned in complete sentences. Summarize!!!!! You have 1 minute left.