1 / 23

Chapter 8: Lesson 2

Chapter 8: Lesson 2. Chemical Equations. Learning Objectives. Today’s Objective: SWBAT: Distinguish among elements, compounds, and molecules. Elements, Compounds, and Molecules. Elements. Consist of only 1 type of element Symbols for the elements are found on the periodic table.

reegan
Download Presentation

Chapter 8: Lesson 2

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Chapter 8: Lesson 2 Chemical Equations

  2. Learning Objectives • Today’s Objective: • SWBAT: Distinguish among elements, compounds, and molecules.

  3. Elements, Compounds, and Molecules

  4. Elements • Consist of only 1 type of element • Symbols for the elements are found on the periodic table

  5. Diatomic Molecules • Neutral particles in which elements share electrons • Diatomic = “two” atoms • These molecules have two atoms of the same element. • Remember: HNOFClBrI • H2, N2, O2, F2, Cl2, Br2, I2

  6. Compounds • Compounds are composed of 2 or more different atoms. • H2O: water is a covalent compound • NaCl: salt is an ionic compound {Formula Unit}

  7. Learning Objective - Preview • Determine how a chemical reaction satisfies the law of conservation of mass.

  8. Law of Conservation of Mass • Mass Before = Mass After • Mass of reactants = Mass of Products • Figure 9 page 346

  9. Word Equations: • Tin + Oxygen Gas  Tin Oxide • Reactants: •  “produces” • Product:

  10. Word Equations: • Tin + Oxygen Gas  Tin Oxide • Reactants: tin, and oxygen gas •  “produces” • Product: tin oxide

  11. Word Equations:Random Selection… be ready! • Sodium bicarbonate + acetic acid  water + carbon dioxide + sodium acetate How many Reactants are there?

  12. Word Equations:Random Selection… be ready! • Sodium bicarbonate + acetic acid  water + carbon dioxide + sodium acetate How many Products are there?

  13. Word Equations:Random Selection… be ready! • Sodium bicarbonate + acetic acid  water + carbon dioxide + sodium acetate Product or Reactant? Acetic acid

  14. Word Equations:Random Selection… be ready! • Sodium bicarbonate + acetic acid  water + carbon dioxide + sodium acetate Product or Reactant? Carbon dioxide

  15. Word Equations:Random Selection… be ready! • Sodium bicarbonate + acetic acid  water + carbon dioxide + sodium acetate Product or Reactant? Water

  16. Word Equations:Random Selection… be ready! • Sodium bicarbonate + acetic acid  water + carbon dioxide + sodium acetate Product or Reactant? Sodium bicarbonate

  17. Word Equations:Random Selection… be ready! • Sodium bicarbonate + acetic acid  water + carbon dioxide + sodium acetate Product or Reactant? Sodium acetate

  18. Word Equations: Are they good enough? • Tin + Oxygen Gas  Tin Oxide • Quick Write: • Does this equation prove the Law of Conservation of Mass? • Why or Why Not?

  19. Chemical Reactions:Whiteboards

  20. Chemical Reactions:Whiteboards • C + O2 CO2

  21. Chemical Reactions:Whiteboards • H2O2 H2O + O2

  22. Chemical Reactions:Whiteboards • CH4 + 2O2  CO2 + 2H2O

  23. Chemical Reactions:Whiteboards • C + O2 CO2

More Related