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What is the difference between cO 2 , o 2 and Carbonated water?

What is the difference between cO 2 , o 2 and Carbonated water?. All Matter has Properties. Extensive properties- dependent on the amount of substance there. (mass, volume) Intensive properties- depends on the type of matter and is independent of how much is there. (density, ability to burn)

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What is the difference between cO 2 , o 2 and Carbonated water?

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  1. What is the difference between cO2, o2and Carbonated water?

  2. All Matter has Properties • Extensive properties- dependent on the amount of substance there. (mass, volume) • Intensive properties- depends on the type of matter and is independent of how much is there. (density, ability to burn) • Physical properties- things are observed or measured (color, density, brittle or hard, melting point, boiling point, freezing point) • Chemical properties- its ability to undergo chemical reactions (ability to burn, corrosiveness, decompose, rust, explode)

  3. Pure Substances • Pure substances can not be separated by physical means such as heat or tearing • Two types of pure substances • Element • Compound

  4. Elements • They can not be broken down by chemical means into any simpler substances. • All elements are found on the periodic table (116 of them) • Given a chemical symbol on the periodic table. • 1st letter is always CAPITALIZED • 2nd letter is always lower case (if there is one)

  5. Compounds • Composed of two or more elements chemically combined. • Can be broken down in elemental forms by chemical means. • Examples: H2O, CO2, H2SO4 H2O + electricity → H2 + O2

  6. Impure Substances • Better known as Mixtures • Mixtures are a combination of elements and or compounds that can be separated by physical means. • Example: Salt water can be separated into salt and water by evaporating the water. • Two types of mixtures • Homogeneous • Heterogeneous

  7. Homogeneous • You can not visibly distinguish the difference between the parts of the mixture • Homogenized milk • Orange juice without pulp • Salt water • Air • Ink • Steel • Another name is solution

  8. Heterogeneous • You can visibly see the parts of the mixture • Rough Concrete • Chocolate chip cookies

  9. Separating Mixtures • Filtration- separates pieces of a mixture by the size of the particles • Example: coffee filters • Distillation- separates parts of a mixture by their boiling points • Example: Alcohol from water

  10. Physical Change • When the substance itself remains the same • Examples: • Phase Changes. When H2O goes from a liquid to a solid in the freezing process, it still remains H2O. • Tearing • Cutting • Bending

  11. Chemical Change • When the chemical makeup and hence the symbols change during a chemical reaction. • Heating of sugar and turn C6H12O6 into Carbon and H2O • C6H12O6 + heat → C + H2O Left side of ARROW are reactants Right side of ARROW are products Arrow means produces or yields + sign means “and” or “reacts with”

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