6. Copy chart onto Cornell Notes Sample Chemical Symbol Density g/cm3 Physical Attribute Lead Pb 11.3 Heaviest Mass Copper Cu 8.9 Orange Iron Fe 7.9 Magnetic/Rusts Brass Cu & Zn 8.6 Yellow Aluminum Al 2.7 Lightest Mass Zinc Zn 7.1 Dull Gray

9. The following formulas are for finding different variables in density problems. Density Formulas m m v D = = = D v x m D v

11. Answer in complete sentences : 8. How is Density useful in identifying substances? Explain why a substance, such as gold, cut into different sizes, would have the same density.

12. Sample Chemical Symbol Density g/cm3 Physical Attribute Aluminum Al 2.7 Not Heavy Copper Cu 8.9 Orange Methane CH 4 .668 Strong Odor Gold Au 19.3 Yellow Ice H 2 0 .917 Crystalline Iron Fe 7.8 Rusts Lead Pb 11.3 Very Heavy Seawater H 2 0 + 1.4 Heterogeneous Wood (average value) Cellulose 0.8 Can Float