Equipment and Safety 1. Bunsen Burner 2. Beaker 3. Tongs 4. Erlenmeyer Flask 5. Evaporating Dish 6. Graduated Cylinder 7. Iron Ring 8. Mortar and Pestle 9.Test Tube 10. Buret 11.Volumetric Flask 12. Watch Glass

Equipment and Safety 13. You should always first flush the effected area with water. 14. Graduated cylinder 15. (theoretical-experimental) / theoretical x 100 experimental / theoretical x Accuracy– how close to the actual answer Precision – how close answers are to each other

Tips for significant figures 1. All numbers (1-9) are significant 2. For zeros, remember the two questions: 1. Is there a decimal point? 2. Is there a number (besides zero) anywhere in front of the zero? If yes to both – significant If yes to both – significant If no to either – not significant If no to either – not significant 3. When adding, look at the decimal place 4. When multiplying, look at the least number of significant figures.

Equipment and Safety a b c d e a (to hundredths) b x (to 2 sig figs) c. 110/ (to 2 sig figs) d. 771 – or 770. (to ones place) e /2.078 (to 2 sig figs)

Equipment and Safety 19 a L b km c. 100 mm