1. Predicting Products: Synthesis and Decomposition Reactions

2. Evaluation/Assessment:
Objective:
Today I will be able to:
Apply knowledge of chemical equations to an exam
Predict the products for synthesis and decomposition reactions
Evaluation/Assessment:
Informal assessment: listening to group interactions as students complete the practice problems
Formal Assessment: Analyze Student Responses as they complete the practice problems and the exam
Common Core Connection
Build Strong Content Knowledge
Make sense of problem and persevere in solving them
Use appropriate tools strategically
Look for and express regularity in repeated reasoning

3. Lesson Sequence Evaluate: Warm – Up Evaluate: Chemical Reactions Exam
Explain: Predicting Products of Synthesis and Decomposition Reactions
Evaluate: Exit Ticket

4. Warm - Up
Take everything off of your desk except a writing utensil for your exam.
Place your electronic device in Ms. Ose’s bin
Make sure the device is on silent

5. Objective Today I will be able to:
Apply knowledge of chemical equations to an exam
Predict the products for synthesis and decomposition reactions

6. Homework
Finish Synthesis and Decomposition Practice

7. Agenda Warm-Up Chemical Reactions Exam
Predicting Products of Synthesis and Decomposition Reaction Notes
Predicting Products Practice
Exit Ticket

8. Chemical Reactions Exam
When you finish the exam, take a look at the practice and examples Ms. Ose gives you for synthesis and decomposition

9. Predicting Products of Synthesis and Decomposition Reactions

10. Synthesis Reactions
Elements or simple compounds are combined to form ONE product
Combine elements and criss-cross the charges
Examples
Cu(II) + S  CuS
4 Na + O2  2 Na2O

11. Decomposition Reactions
If TWO elements (binary compound) are present in the original compound, just break it apart into two elements
2 HCl  H2 + Cl2

12. Decomposition Reactions
If THREE elements (ternary compound) are present, determine if one of them is a HALOGEN
If one element is a halogen, then the halogen and the metal stick together and oxygen gas is produced
2 KClO3  2 KCl + 3 O2

13. Decomposition Reactions
If there are no halogens present, then a metallic oxide and a gas with 1 less oxygen than the polyatomic ion is produced
CaCO3  CaO + CO2

14. Predicting Products Practice
Complete the practice at your desk. Whatever you do not finish will become your HW.

15. Exit Ticket
Predict the products of the reactions and balance the equations
__ Na2CO3 
__ Mg + __ N2 