1. Do Now: 10 min. Self Reflection Write a reflection about the last science test. Include: 1.What did you do to prepare for the test?  Honestly, did you study? 2.Did the marshmallow carbon compound lab help your understanding? 3.What grade do you think you got on the test? 4.Did you think the test was easy or difficult? 5.What section did you understand the most/least?  Chemical Bonds, Chemical Formulas, Naming Compounds, Molecules in living organisms (The Big 4) 6.What can you do to improve your effort in class and at home?

2. Practice and Review - With your Table Group List the name of each element in the compound. Count the number of atoms for each element in the compound. 1. Mg 3 Bi 2 ▫Magnesium: 3 ▫Bismuth: 2 2. 4 FeO 2 H ▫Iron: 4 ▫Oxygen: 8 ▫Hydrogen: 4 3. 4 NaAu(CN) 2 ▫Sodium: 4 ▫Gold: 4 ▫Carbon: 8 ▫Nitrogen: 8 4. Pb(NO 3 ) 2 ▫Lead: 1 ▫Nitrogen: 2 ▫Oxygen: 6 5. 5 Hg(BrO 3 ) 2 Mercury: 5 Bromine: 10 Oxygen: 30

3. Homework and Announcements Today: Conservation of Matter Worksheet Chapter 17.1 and 17.2 Outline Section # and Name Main Topics Big Ideas Vocabulary and Definition (Highlight)

4. Conservation of Matter L.O. SWBA T determine whether a chemical reaction shows conservation of matter.

5. Conservation of Matter CH 4 + 2O 2 CO 2 + 2H 2 O (1 C, 4H, 4 O) In a chemical reaction atoms are not created or destroyed, they are only rearranged.

6. Mass of Reactants = Mass of Products Conservation of Matter Reactants → Products Example: H ₂ + O → H ₂ O Example: 10 g H ₂ + 15 g O → 25 g of H ₂ O

7. Fe + Cl 2  FeCl 3 What are the reactants? What are the products? Does this equation show conservation of matter? No Fe: Cl: Fe: Cl: 11 23

8. 2Fe + 3Cl 2  2FeCl 3 What are the reactants? What are the products? Does this equation show conservation of matter? Yes Fe: Cl: Fe: Cl: 22 66

9. 2Al + 3O 2  2Al 2 O 3 What are the reactants? What are the products? Does this equation show conservation of matter? No Al: O: Al: O: 24 66

10. 4Al + 3O 2  2Al 2 O 3 What are the reactants? What are the products? Does this equation show conservation of matter? Yes Al: O: Al: O: 44 66

11. CaCl 2 + 2AgNO 3  2AgCl + Ca(NO 3 ) 2 What are the reactants? What are the products? Does this equation show conservation of matter? Yes Ca: Cl: Ag: N: O: Ca: Cl: Ag: N: O: 11 22 22 22 66

12. Summary Write a paragraph (3-4 sentences) reflecting on today’s lesson. ▫Helper Questions:  What is the conservation of matter?  What is a subscript?  What is a coefficient?  How do we determine if an equation is balanced?

13. Are you on Task? Conservation of Matter Worksheet. Chapter Outline 17.1 and 17.2 Section # and Name Main Topics Big Ideas Vocabulary and Definition (Highlight)