1. Translating Equations Practice

2. Evaluation/Assessment:
Objective:
Today I will be able to:
Balance equations to satisfy the law of conservation of matter
Correctly translate equations from words to symbols
Evaluation/Assessment:
Informal assessment – listening to student responses as the complete the practice problems
Formal assessment – analyzing student responses to the translation and balancing practice problems and the exit ticket
Common Core Connection
Build Strong Content Knowledge
Make sense of problem and persevere in solving them
 Model with mathematics
Use appropriate tools strategically
Look for and express regularity in repeated reasoning

3. Lesson Sequence Evaluate: Warm – Up Explain: Balancing Equation Notes
Elaborate: Balancing Equation Practice
Elaborate: Translating Equations
Evaluate: Exit Ticket

4. Warm – Up Translate the following word equations:
Ammonia reacts with hydrogen chloride to form ammonium chloride.
Calcium Carbonate decomposes to form calcium oxide and carbon dioxide.
What are the 7 diatomic elements?

5. Objectives Today I will be able to:
Balance equations to satisfy the law of conservation of matter
Correctly translate equations from words to symbols

6. Homework
Finish Translating Equations Practice

7. Agenda Warm – Up Balancing Equation Notes Balancing Equation Practice
Translating Equations Practice
Exit Ticket

8. Balancing Chemical Equations Notes

9. Think back! What is the Law of Conservation of Matter?
Matter can not be created or destroyed, it can be transformed from one form to another.

10. Why is this important for chemical equations?
Same number of each element on the reactant side as the product side
Balanced

11. Ms. Ose’s Tips for Balancing Equations
Must satisfy the law of conservation of matter
Only use whole number coefficients
All atoms should be present on both the reactant and product side of the equation
Check to see if the equation is already balanced
Coefficients go in front of the substance and multiply all subscripts

12. Ms. Ose’s tips for balancing equations continued
One (1) is understood and does not have to be written as a coefficient
All coefficients should be reduced to lowest terms
Balance most complex species first and then move to single atoms
Double check your work!

13. BaS + NaCl  Na2S + BaCl2
Example 1

14. BaS + 2 NaCl  Na2S + BaCl2
Answer

15. P + O2  P2O5
Example 2

16. 4P + 5O2  2P2O5
Answer

17. Na2O2 + H2O  NaOH+ O2
Example 3
You Try!

18. 2Na2O2 + 2H2O  4NaOH+ O2
Answer

19. Balancing Chemical Equations Practice
Work on the worksheet at your desk. We will review select responses as a class

20. Translating Chemical Equations Practice
Complete the practice at your desk. It will be collected and graded for accuracy. Whatever you do not finish will become your homework.

21. Exit Ticket Translate and balance the following equation:
Zinc reacts with copper(II) nitrate to form zinc nitrate and copper.