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8/19/13

8/19/13. All of the properties below are physical properties except a. Solubility b. Malleability c. Conductivity d. Flammability. All of the following changes are physical changes except Water evaporating A paper towel soaking up water Butter melting Paper burning.

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8/19/13

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  1. 8/19/13 All of the properties below are physical properties except a. Solubility b. Malleability c. Conductivity d. Flammability • All of the following changes are physical changes except • Water evaporating • A paper towel soaking up water • Butter melting • Paper burning

  2. 8/20/13 Which of the following is a chemical property? a. Flammability b. Conductivity c. Density d. Solubility Which of the following is a chemical change? a. Baking a cake b. Washing your car c. Mowing your grass d. Dissolving sugar in water

  3. 8/21/13 Which statement is true about all chemical changes? a. A different state of matter is produced b. Some mass is converted to energy c. Some form of light is given off d. A new material is formed • Which is a chemical change? • Evaporating water • Adding Kool-aid to water • Silver tarnishing • Dissolving CO2 in soda

  4. When a glow stick is broken, chemicals mix . Which statement best supports the idea that a chemical reaction is occurring? 8/22/13 The vial breaks Energy is released as light Two different substances combine The substances are in a flexible container Which process is a physical change? a. Rusting b. Burning c. Melting d. Tarnishing

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