1. Cookie Chemistry
Ms. Chang

2. Baking = Chemistry

3. 2 eggs + 2 cups flour + ½ cup sugar + ½ cup chocolate chips + 1 TSP butter → 20 chocolate chip cookies
CH₄ + 2O₂ → 2H₂O + CO₂

4. 2 eggs + 2 cups flour + ½ cup sugar + ½ cup chocolate chips + 1 TSP butter → 20 chocolate chip cookies
Reactants
CH₄ + 2O₂ → 2H₂O + CO₂

5. 2 eggs + 2 cups flour + ½ cup sugar + ½ cup chocolate chips + 1 TSP butter → 20 chocolate chip cookies
CH₄ + 2O₂ → 2H₂O + CO₂

6. 2 eggs + 2 cups flour + ½ cup sugar + ½ cup chocolate chips + 1 TSP butter → 20 chocolate chip cookies
Products
CH₄ + 2O₂ → 2H₂O + CO₂

7. 2 eggs + 2 cups flour + ½ cup sugar + ½ cup chocolate chips + 1 TSP butter → 20 chocolate chip cookies
CH₄ + 2O₂ → 2H₂O + CO₂

8. 2 eggs + 2 cups flour + ½ cup sugar + ½ cup chocolate chips + 1 TSP butter → 20 chocolate chip cookies
Coefficient: tells you the amount of reactants or product
CH₄ + 2O₂ → 2H₂O + CO₂

9. 2 eggs + 2 cups flour + ½ cup sugar + ½ cup chocolate chips + 1 TSP butter → 20 chocolate chip cookies

10. 2 eggs + 2 cups flour + ½ cup sugar + ½ cup chocolate chips + 1 TSP butter → 20 chocolate chip cookies
Ratio: shows the relationship between 2 items
For every 2 eggs you have 2 cups of flour
For every 2 eggs you have ½ cup of sugar

11. CH₄ + 2O₂ → 2H₂O + CO₂

12. Ratio
For every 1 CH₄ you have 2 O₂
CH₄ + 2O₂ → 2H₂O + CO₂

13. How does the ratio or amount of ingredients in a recipe impact the product?

14. 2 eggs + 2 cups flour + ½ cup sugar + ½ cup chocolate chips + 1 TSP butter → 20 chocolate chip cookies
You have all the ingredients, but realize you only have 1 egg left. Can you still make cookies? How will you adjust the recipe?

15. 2 eggs + 2 cups flour + ½ cup sugar + ½ cup chocolate chips + 1 TSP butter → 20 chocolate chip cookies
Eggs are your limiting reactant because only having 1 limits the amount of cookies you can make

16. How can we fix the recipe so we can still make cookies?

17. 2 eggs + 2 cups flour + ½ cup sugar + ½ cup chocolate chips + 1 TSP butter → 20 chocolate chip cookies
You have 2 eggs for every other reactant (ingredient), so divide everything by 2

18. 2/2 eggs + 2/2 cups flour + ½/2 cup sugar + ½/2 cup chocolate chips + 1/2 TSP butter → 20/2 chocolate chip cookies
What amount of each ingredient will we need now? How many cookies can we make now? Answer on your notes.