1. Lesson Frame I will be able to calculate density and answer the following questions based on the knowledge I have learned this 6 weeks. I will use my Cornell notes and discuss with a partner anything that I do not understand. I will have mastered this material when I can make a score of 80% or better on the test on Thursday.

2. Review for Week 6 Exam Oct 3, 2013

3. What Do You Think? Since a kilogram of feathers and a kilogram of lead have the same mass, how do they appear different and why?

4. Demo: Density Column What do you think are the substances in the column and why are they layered? How is the spider suspended in the clear colorless liquid?

5. What is the formula for calculating density? Density = mass/volume

6. Calculate Density Determine the density of an object that has a mass of 1.2 g and a volume of 2.0 ml. Show your work. Include unit of measure with your answer.

7. Warm up Calculate the mass of an object that has a density of 19.3 g/cm 3 and a volume of 65 ml. Show all of your work. Be sure to include unit of measure with your answer.

8. Solution Density=19.3 g/ml Volume= 65ml Mass = Density x volume Mass = 19.3 g/ml x 65 ml Mass = 1254.5 g

9. Density of Water What is the density of water? Is density a physical or chemical property? Is density an intensive or extensive property?

10. Complete the table Substance or Mixture?Element, Compound, Homogeneous Mixture, Heterogeneous Mixture Sugar water Epsom Salt MgSO 4 milk Oil and water copper

11. Choose from the word bank below to complete the following statements Melting Condensation Sublimation Freezing Evaporation 1. Phase change from a solid to liquid___________________________ 2. Phase change from a liquid to gas_____________________________ 3. Phase change from a solid to gas______________________________ 4. Phase change from a liquid to solid____________________________ 5. Phase change from a gas to liquid_____________________________

12. Intensive/Extensive Identify the property as either intensive or extensive Color_______________________ Mass_______________________ Density_____________________ Boiling point_________________ Volume_____________________

14. Using the heating curve on the previous slide… What number represents the solid phase?_____________ What temperature does this substance melt at?________ What number represents the liquid phase?____________ What temperature does this substance boil at?_________ What number represents the gas phase?______________

15. Fill in the correct oxidation numbers for groups 1A – 8A

16. Name the following ionic compounds NaF___________________ K 2 CO 3 _________________________ CuCl 2 __________________ Ca 3 (PO 4 ) 2__________________________________ Mg(OH) 2_______________________ Mn(NO 3 ) 3__________________________________

17. Write the correct formula for the following ionic compounds (balance charges!!) Potassium fluoride_____________ copper (II) sulfate________________ Lead (IV) chloride______________ aluminum phosphate_____________

18. Write the correct formula or name the following covalent compounds Dihydrogen monoxide___________ phosphorous triiodide____________ CCl 4 __________________________ N 2 S 3 ___________________________

19. “Heavenly Seven” List the seven elements that are the diatomic molecules