![Page 1: Chemical Reactions Chapter 11. Do Now- In your own words Write an explanation for what Is happening in this picture. Objective- 11.1 Describing Chemical](https://reader035.vdocuments.us/reader035/viewer/2022070403/56649f2e5503460f94c484f2/html5/thumbnails/1.jpg)
Chemical Reactions
Chapter 11
![Page 2: Chemical Reactions Chapter 11. Do Now- In your own words Write an explanation for what Is happening in this picture. Objective- 11.1 Describing Chemical](https://reader035.vdocuments.us/reader035/viewer/2022070403/56649f2e5503460f94c484f2/html5/thumbnails/2.jpg)
Do Now- In your own words Write an explanation for what Is happening in this picture.
Objective- 11.1 Describing Chemical Reactions
HW – Pg 329 # 9-12
![Page 3: Chemical Reactions Chapter 11. Do Now- In your own words Write an explanation for what Is happening in this picture. Objective- 11.1 Describing Chemical](https://reader035.vdocuments.us/reader035/viewer/2022070403/56649f2e5503460f94c484f2/html5/thumbnails/3.jpg)
11.1 Describing Chemical Reactions
• Word Equations
![Page 4: Chemical Reactions Chapter 11. Do Now- In your own words Write an explanation for what Is happening in this picture. Objective- 11.1 Describing Chemical](https://reader035.vdocuments.us/reader035/viewer/2022070403/56649f2e5503460f94c484f2/html5/thumbnails/4.jpg)
11.1 Describing Chemical Reactions
• Word Equations
Reactants → Products
![Page 5: Chemical Reactions Chapter 11. Do Now- In your own words Write an explanation for what Is happening in this picture. Objective- 11.1 Describing Chemical](https://reader035.vdocuments.us/reader035/viewer/2022070403/56649f2e5503460f94c484f2/html5/thumbnails/5.jpg)
11.1 Describing Chemical Reactions
• Word Equations
Reactants → Products
iron + oxygen → iron(III) oxide
![Page 6: Chemical Reactions Chapter 11. Do Now- In your own words Write an explanation for what Is happening in this picture. Objective- 11.1 Describing Chemical](https://reader035.vdocuments.us/reader035/viewer/2022070403/56649f2e5503460f94c484f2/html5/thumbnails/6.jpg)
Symbols Used in Chemical Reactions
+→↔(s)(l)(g)(aq)Heat ∆Pt
![Page 7: Chemical Reactions Chapter 11. Do Now- In your own words Write an explanation for what Is happening in this picture. Objective- 11.1 Describing Chemical](https://reader035.vdocuments.us/reader035/viewer/2022070403/56649f2e5503460f94c484f2/html5/thumbnails/7.jpg)
Symbols Used in Chemical Reactions
+ Separates two reactant and two products→ “Yields” Separates reactants from products↔ Reaction is reversible (s) solid(l) liquid (g) gas(aq) aqueous solutionheat ∆ heat was supplied to reactionPt Element (Pt) used as catalyst
![Page 8: Chemical Reactions Chapter 11. Do Now- In your own words Write an explanation for what Is happening in this picture. Objective- 11.1 Describing Chemical](https://reader035.vdocuments.us/reader035/viewer/2022070403/56649f2e5503460f94c484f2/html5/thumbnails/8.jpg)
• Chemical Equations
Reactants → Products iron + oxygen → iron(III) oxide Fe + O2 → Fe2O3
![Page 9: Chemical Reactions Chapter 11. Do Now- In your own words Write an explanation for what Is happening in this picture. Objective- 11.1 Describing Chemical](https://reader035.vdocuments.us/reader035/viewer/2022070403/56649f2e5503460f94c484f2/html5/thumbnails/9.jpg)
→
![Page 10: Chemical Reactions Chapter 11. Do Now- In your own words Write an explanation for what Is happening in this picture. Objective- 11.1 Describing Chemical](https://reader035.vdocuments.us/reader035/viewer/2022070403/56649f2e5503460f94c484f2/html5/thumbnails/10.jpg)
• Chemical Equations
Reactants → Products iron + oxygen → iron(III) oxide Fe + O2 → Fe2O3
4Fe(s) + 3O2(g) → 2Fe2O3 (s)
![Page 11: Chemical Reactions Chapter 11. Do Now- In your own words Write an explanation for what Is happening in this picture. Objective- 11.1 Describing Chemical](https://reader035.vdocuments.us/reader035/viewer/2022070403/56649f2e5503460f94c484f2/html5/thumbnails/11.jpg)
Magnesium + Oxygen → Magnesium oxide
![Page 12: Chemical Reactions Chapter 11. Do Now- In your own words Write an explanation for what Is happening in this picture. Objective- 11.1 Describing Chemical](https://reader035.vdocuments.us/reader035/viewer/2022070403/56649f2e5503460f94c484f2/html5/thumbnails/12.jpg)
Magnesium + Oxygen → Magnesium oxide
Mg + O2 → MgO
![Page 13: Chemical Reactions Chapter 11. Do Now- In your own words Write an explanation for what Is happening in this picture. Objective- 11.1 Describing Chemical](https://reader035.vdocuments.us/reader035/viewer/2022070403/56649f2e5503460f94c484f2/html5/thumbnails/13.jpg)
Magnesium + Oxygen → Magnesium oxide
Mg + O2 → MgO
2Mg + O2 → 2MgO
![Page 14: Chemical Reactions Chapter 11. Do Now- In your own words Write an explanation for what Is happening in this picture. Objective- 11.1 Describing Chemical](https://reader035.vdocuments.us/reader035/viewer/2022070403/56649f2e5503460f94c484f2/html5/thumbnails/14.jpg)
• Do Now - Write the ionic or molecular formula for Lithium Oxide
Aluminum SulfideSilicon Oxide
• Objective – Balance Chemical Equations
• Homework – finish Pg. 329 # 9 – 12 and handout
![Page 15: Chemical Reactions Chapter 11. Do Now- In your own words Write an explanation for what Is happening in this picture. Objective- 11.1 Describing Chemical](https://reader035.vdocuments.us/reader035/viewer/2022070403/56649f2e5503460f94c484f2/html5/thumbnails/15.jpg)
Balancing Chemical Equations
→
![Page 16: Chemical Reactions Chapter 11. Do Now- In your own words Write an explanation for what Is happening in this picture. Objective- 11.1 Describing Chemical](https://reader035.vdocuments.us/reader035/viewer/2022070403/56649f2e5503460f94c484f2/html5/thumbnails/16.jpg)
1. Determine correct formulas for all reactants and products. 2. Write a skeleton equation. 3. Determine the number of atoms of each element on the reactant side and the product side.
4. Balance the number of atoms of each element by adding coefficients. (The subscripts can’t be changed now)
5. Check that the number of atoms of each element is the same on both sides. 6. Check to see that all coefficients are in lowest whole number ratio possible.
Iron + oxygen → iron oxide
Fe + O2 → Fe2O3
![Page 17: Chemical Reactions Chapter 11. Do Now- In your own words Write an explanation for what Is happening in this picture. Objective- 11.1 Describing Chemical](https://reader035.vdocuments.us/reader035/viewer/2022070403/56649f2e5503460f94c484f2/html5/thumbnails/17.jpg)
1. Determine correct formulas for all reactants and products. 2. Write a skeleton equation. 3. Determine the number of atoms of each element on the reactant side and the product side.
4. Balance the number of atoms of each element by adding coefficients. (The subscripts can’t be changed now)
5. Check that the number of atoms of each element is the same on both sides. 6. Check to see that all coefficients are in lowest whole number ratio possible.
Iron + oxygen → iron oxide
Fe + O2 → Fe2O3
Fe Fe O O
![Page 18: Chemical Reactions Chapter 11. Do Now- In your own words Write an explanation for what Is happening in this picture. Objective- 11.1 Describing Chemical](https://reader035.vdocuments.us/reader035/viewer/2022070403/56649f2e5503460f94c484f2/html5/thumbnails/18.jpg)
1. Determine correct formulas for all reactants and products. 2. Write a skeleton equation. 3. Determine the number of atoms of each element on the reactant side and the product side.
4. Balance the number of atoms of each element by adding coefficients. (The subscripts can’t be changed now)
5. Check that the number of atoms of each element is the same on both sides. 6. Check to see that all coefficients are in lowest whole number ratio possible.
Iron + oxygen → iron oxide
Fe + O2 → Fe2O3
Fe 1 Fe 2O 2 O 3
![Page 19: Chemical Reactions Chapter 11. Do Now- In your own words Write an explanation for what Is happening in this picture. Objective- 11.1 Describing Chemical](https://reader035.vdocuments.us/reader035/viewer/2022070403/56649f2e5503460f94c484f2/html5/thumbnails/19.jpg)
1. Determine correct formulas for all reactants and products. 2. Write a skeleton equation. 3. Determine the number of atoms of each element on the reactant side and the product side.
4. Balance the number of atoms of each element by adding coefficients. (The subscripts can’t be changed now)
5. Check that the number of atoms of each element is the same on both sides. 6. Check to see that all coefficients are in lowest whole number ratio possible.
Iron + oxygen → iron oxide
Fe + O2 → Fe2O3
Fe 1 Fe 2O 2 O 3
Fe + O2 → Fe2O3
Fe 1 Fe 2O 2 O 3
![Page 20: Chemical Reactions Chapter 11. Do Now- In your own words Write an explanation for what Is happening in this picture. Objective- 11.1 Describing Chemical](https://reader035.vdocuments.us/reader035/viewer/2022070403/56649f2e5503460f94c484f2/html5/thumbnails/20.jpg)
1. Determine correct formulas for all reactants and products. 2. Write a skeleton equation. 3. Determine the number of atoms of each element on the reactant side and the product side.
4. Balance the number of atoms of each element by adding coefficients. (The subscripts can’t be changed now)
5. Check that the number of atoms of each element is the same on both sides. 6. Check to see that all coefficients are in lowest whole number ratio possible.
Iron + oxygen → iron oxide
Fe + O2 → Fe2O3
Fe 1 Fe 2O 2 O 3
Fe + O2 → Fe2O3
Fe 1 Fe 2O 2 O 3
Fe + O2 → Fe2O3
Fe Fe O O
![Page 21: Chemical Reactions Chapter 11. Do Now- In your own words Write an explanation for what Is happening in this picture. Objective- 11.1 Describing Chemical](https://reader035.vdocuments.us/reader035/viewer/2022070403/56649f2e5503460f94c484f2/html5/thumbnails/21.jpg)
1. Determine correct formulas for all reactants and products. 2. Write a skeleton equation. 3. Determine the number of atoms of each element on the reactant side and the product side.
4. Balance the number of atoms of each element by adding coefficients. (The subscripts can’t be changed now)
5. Check that the number of atoms of each element is the same on both sides. 6. Check to see that all coefficients are in lowest whole number ratio possible.
Iron + oxygen → iron oxide
Fe + O2 → Fe2O3
Fe 1 Fe 2O 2 O 3
Fe + O2 → Fe2O3
Fe 1 Fe 2O 2 O 3
4Fe + 3O2 → 2Fe2O3
Fe 4 Fe 4O 6 O 6
![Page 22: Chemical Reactions Chapter 11. Do Now- In your own words Write an explanation for what Is happening in this picture. Objective- 11.1 Describing Chemical](https://reader035.vdocuments.us/reader035/viewer/2022070403/56649f2e5503460f94c484f2/html5/thumbnails/22.jpg)
1. Determine correct formulas for all reactants and products. 2. Write a skeleton equation. 3. Determine the number of atoms of each element on the reactant side and the product side.
4. Balance the number of atoms of each element by adding coefficients. (The subscripts can’t be changed now)
5. Check that the number of atoms of each element is the same on both sides. 6. Check to see that all coefficients are in lowest whole number ratio possible.
Iron + oxygen → iron oxide
Fe + O2 → Fe2O3
Fe 1 Fe 2O 2 O 3
Fe + O2 → Fe2O3
Fe 1 Fe 2O 2 O 3
4Fe + 3O2 → 2Fe2O3
Fe 4 Fe 4O 6 O 6
4Fe + 3O2 → 2Fe2O3