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Properties: Chemical or Physical

Properties: Chemical or Physical. How Can We Tell?. Physical Properties. Any property that can be observed or measured without forming a new substance They describe the particles Can be broken down into Qualitative and Quantitative properties

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Properties: Chemical or Physical

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  1. Properties: Chemical or Physical How Can We Tell?

  2. Physical Properties • Any property that can be observed or measured without forming a new substance • They describe the particles • Can be broken down into Qualitative and Quantitative properties • Qualitative Physical Property: can be described but not measured • Quantitative Physical Property: can be measured numerically

  3. Qualitative Physical Properties: • Color • Texture • Taste • Smell • State • Crystal Shape • Malleability • Ductility

  4. Quantitative Physical Properties: • Melting temperature • Boiling temperature • Density • Viscosity • Solubility • Electrical Conductivity • Heat Conductivity

  5. Chemical Properties: • Any property that describes how a substance reacts when forming a new substance • Describe the behavior of the particles in the presence of other particles

  6. Types of Chemical Properties: • Reacts with water • Reacts with air • Reacts with pure oxygen • Reacts with acids • Reacts with other pure substances • Toxicity • Stability • Combustibility

  7. Note: • Understanding the difference between chemical and physical properties can help you determine if a chemical or physical change has taken place

  8. Examples: • Copper reacts with substances in air to form a green coating • This coating is known as Patina by artists

  9. Other Examples: • Gold is malleable • It can be hammered into thin sheets and different shapes • Iron melts at • This is extremely high • Sulfur reacts with oxygen to form sulfur dioxide

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