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Understanding Chemical and Physical Properties and Changes

Explore the distinctions between chemical and physical properties and changes in a comprehensive study. This guide delves into key concepts such as solubility, malleability, conductivity, and flammability as physical properties, while highlighting chemical properties like flammability and chemical changes such as baking a cake and silver tarnishing. Learn to identify which processes are physical or chemical changes through practical examples and by examining how energy is involved in reactions. Enhance your understanding of matter and energy transformation.

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Understanding Chemical and Physical Properties and Changes

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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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