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Objective

Chemical Properties of Matter IAN pg. 31. Main Ideas 1. Chemical Property 2. Chemical Change 3. Freezing Point 4. Melting Point 5. Evaporation 6. Sublimation 7. Boiling Point 8. Condensation 9. Dew Point. Objective

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Objective

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  1. Chemical Properties of Matter IAN pg. 31 Main Ideas1. Chemical Property2. Chemical Change3. Freezing Point4. Melting Point5. Evaporation6. Sublimation7. Boiling Point8. Condensation9. Dew Point Objective Identify chemical properties and changes in matter using demonstrations, notes and collaboration.

  2. I. Chemical Properties & Changes A. Chemical Properties Describes how substances can form newsubstances Including: Combustibility (How well it burns), Oxidation (Rusting, Tarnishing), Reactivity, pH (Percent H+)

  3. B. Chemical Change: Changing one substance into another substance by rearranging atoms to form something NEW! 1. Evidence of chemical change: bubbles, odor, color change, temperature change, solid forms =Precipitate Ex. Burning, Rusting, Digestion, Cooking

  4. ELEPHANT TOOTHPASTE TOP ½ IAN pg. 30 KI + H2O2 H2O + O2 + K- + I+ H2O2 + Soap KI

  5. ELEPHANT TOOTHPASTE OBSERVATIONS QuantitativeQualitative BOTTOM ½ IAN pg. 30 1. H2O2 (Hydrogen Peroxide) 50 mL 1. 2. 2. KI(Potassium Iodide) 20 mL 3. 3. Dish Soap 2-5 mL 4. Observations that indicate a Chemical Reaction has occurred:

  6. Changes of states of matter are physical changes. A. Freezing Point: The temperature when a Liquid turns into solid.

  7. B. Melting Point: The temperature when a Solid turns into a liquid.

  8. C. Evaporation: liquid to a gas. Occurs over a wide range of temperatures. D. Sublimation: Solid to a gas.

  9. E. Boiling Point:. Specific Temperature at which a Liquid turns into a gas. F. Condensation: Gas to a liquid. Dependent upon temperature & humidity.

  10. G. Dew Point – The temperature at which condensation will occur. (rain)

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