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II. Properties of Matter

II. Properties of Matter. Physical and Chemical. II. Properties of Matter. A. Physical Properties Appearances—color, size, shape, texture, smell, mass, volume, density, boiling point, state of matter, etc . . . Describe somewhere you’ve been without telling us it’s name. 2. Behavior:

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II. Properties of Matter

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  1. II. Properties of Matter Physical and Chemical

  2. II. Properties of Matter A. Physical Properties • Appearances—color, size, shape, texture, smell, mass, volume, density, boiling point, state of matter, etc . . . • Describe somewhere you’ve been without telling us it’s name.

  3. 2. Behavior: Magnetic Malleable (Pounded into sheets) Ductile (Pulled into wires) Viscosity (Flow of liquid) 3. Using Physical Properties to Separate

  4. B. Physical Change 1. Identity Remains the Same --state of matter change Ice, Water, and Steam all = H2O 2. Using Physical Change to Separate Evaporation, Filtration, Magnetism, Dissolving, Chromatography

  5. C. Chemical Properties and Changes --Chemical property is the ability to: burn  flammability be digested  digestibility react with others  reactivity harm you  toxicity

  6. D. Detecting Chemical Change 1. Identity Change ** Color change ** Energy release or used (HEAT/LIGHT/SOUND) **Bubbles form / Gas Released ** New Substance Formed

  7. 2. Using Chemical Change to Separate Silver is an element with a symbol of Ag. Tarnish is silver sulfide. To remove tarnish from silver, you react the sulfides. That removes the reacted layer and revels the pure silver.

  8. What are its properties? Chocolate Fudge

  9. What are its properties? Fireworks

  10. Lab Notebook

  11. E. Weathering Physical --water freezes and expands, cracking rocks

  12. E. Weathering Physical --Streams and wind erode rock and soil away

  13. E. Weathering 2. Chemical --Limestone rocks (calcium carbonate) react with acid in water to form a new substance

  14. F. Law of Conservation of Mass Matter is never created nor destroyed Mass, therefore, is not created nor destroyed They change form!

  15. F. Law of Conservation of Mass If two chemicals have a combined mass of 25.48g react in a flask massing 142.05g. A gas is produced but not captured. After the reaction the remaining chemical in the flask have a mass of 167.16g. How much gas was formed in this reaction?

  16. Review of Density—a physical property Density measures the amount of matter in a certain volume. Density determines if items float or sink. Items with density of LESS than 1.0 g/mL float in water because water = 1.0 g/mL

  17. Density • D = m / v • m (mass) in grams found on balance • v (volume) • L x W x H of regular shape is in cm3 • Immerse irregular shape in water is in mL

  18. Volume 4cm L x W x H 4cm x 6cm x 2cm 48cm3 Height = 2cm 6cm

  19. Finding Volume by Water Displacement • A wooden block raises the level of the liquid in the graduated cylinder from 150ml to 180ml. What is the volume of the block? • 180ml – 150ml = 30ml

  20. Using the Density Formula

  21. Measuring Volume with a Formula • A wood block as in the last example has sides that are 2cm wide, 5cm long, and 3cm high. What is the volume of the block? • Use the formula l x w x h • The answer will be in cm3 • If its mass is 90 grams, what is its density? • 2cm x 5cm x 3cm = 30cm3 90g ÷ 30cm3 = 3g/cm3

  22. Let’s Try Some More Density Problems If the mass of a rock is 500g and its volume is 25cm3, what is its density? If the density of a liquid is 1.2 g/ml, and its volume is 10ml, what is its mass? If Bob’s mass is 80kg and his density is 1.6kg/l, what is his volume?

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