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What is a Mixture?

PRESS THE RIGHT-ARROW BUTTON ON YOUR KEYBOARD TO ADVANCE THROUGH THE PRESENTATION. . SPI 0807.9.4 Mixtures or Compounds. Notes. What is a Mixture? When you combine two or more substances together, if no chemical reaction occurs then it is called a mixture

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What is a Mixture?

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  1. PRESS THE RIGHT-ARROW BUTTON ON YOUR KEYBOARD TO ADVANCE THROUGH THE PRESENTATION  SPI 0807.9.4 Mixtures or Compounds Notes • What is a Mixture? • When you combine two or more substances together, if nochemical reaction occurs then it is called a mixture • NOTE: A mixture may contain 1 or more compounds, as long as they do not react with each other • (like Koolaid…see example below) • MIXTURE EXAMPLES: • Koolaid… • Pizza… When you combine water (a compound) and Koolaid powder (sugar, flavoring, & coloring) these items do not chemically react with each other. When you combine cheese, tomato sauce, and dough, these items do not chemically react with each other.

  2. SPI 0807.9.4 Mixtures or Compounds Notes • More About Mixtures: • Any changes you observe in a mixture are only physical changes…no new substances are formed. • Mixtures can be fairly easily separated back into the individual ingredients • More Mixture Examples: • Red Bull • …is merely a combination of water and other ingredients • Air • …is merely a combination of nitrogen, oxygen, & other gases • Steel • …is merely a combination of iron and carbon No chemical reaction occurs No chemical reaction occurs No chemical reaction occurs

  3. SPI 0807.9.4 Mixtures or Compounds Notes • What Is A mixture? • a combination of two or more substances that ARE NOT • chemically combined • No chemical reaction occurs! • Unlike a compound… • …a mixture can be fairly easily taken back apart • EXAMPLES: • Soup, Soft drinks (Coke, Pepsi, etc.), Tea, Hamburgers, Koolaid Drinks, pizza, etc No fizzing or foaming No explosion No smoke No heat or light given off No precipitate is formed

  4. SPI 0807.9.4 Mixtures or Compounds Notes • Key Point About Mixtures • Mixtures can be fairly easily taken back apart • No chemical reaction occurs! • More Mixture Examples: • Soup, Soft drinks (Coke, Pepsi, etc.), Tea, Salads, Soil (dirt), Perfume, Cologne, Bronze, etc No smoke No explosion No fizzing or foaming No precipitate is formed No heat or light given off

  5. SPI 0807.9.4 Mixtures or Compounds Notes • What Is a Compound? • …is made up of atoms of two or more differentelementsthat are chemically bonded via a chemical reaction. • More Compound Examples: • Water (Hydrogen Oxide) • Battery Acid (Hydrogen Sulfate) • Table Salt (Sodium Chloride) • Table Sugar (Sucrose) • Rust (Iron Oxide) • Chalk (Calcium Carbonate)

  6. Review Activity • Is this an element, compound, or mixture? • Write a capital E if you think it is an element • Write a capital C if you think it is a compound • Write a capital M if you think it is a mixture • Ar • (Argon) • Why?...is a pure substance, consists of only one type of atom • Element

  7. Review Activity • Is this an element, compound, or mixture? • Write a capital E if you think it is an element • Write a capital C if you think it is a compound • Write a capital M if you think it is a mixture • Monster Energy Drink • Why…ingredients DO NOT chemically combine • Ingredients: Water, sugar, coloring, and flavor • Mixture

  8. Review Activity • Is this an element, compound, or mixture? • Write a capital E if you think it is an element • Write a capital C if you think it is a compound • Write a capital M if you think it is a mixture • C6H12O6 • (Glucose) • Why?...has 3 atoms chemically bonded together • Compound

  9. Review Activity • Is this an element, compound, or mixture? • Write a capital E if you think it is an element • Write a capital C if you think it is a compound • Write a capital M if you think it is a mixture • Chicken Soup • Why…ingredients DO NOT chemically combine • Ingredients: Water, chicken, vegetable, noodles, salt, etc. • Mixture

  10. Review Activity • Is this an element, compound, or mixture? • Write a capital E if you think it is an element • Write a capital C if you think it is a compound • Write a capital M if you think it is a mixture • CO2 • (Carbon Dioxide) • Why?...has 2 atoms chemically bonded together • Compound

  11. Review Activity • Is this an element, compound, or mixture? • Write a capital E if you think it is an element • Write a capital C if you think it is a compound • Write a capital M if you think it is a mixture • Uut • (Ununtrium) • Why?...is a pure substance, consists of only one type of atom • Element

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