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Chemical Properties and Physical Properties

Chemical Properties and Physical Properties. What’s the difference????. Review on Physical Properties. A physical property is a characteristic of a pure substance that can be observed without changing that substance into another different substance. Hardness Color Texture Dissolvability

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Chemical Properties and Physical Properties

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  1. Chemical Properties and Physical Properties What’s the difference????

  2. Review on Physical Properties • A physical property is a characteristic of a pure substance that can be observed without changing that substance into another different substance. • Hardness • Color • Texture • Dissolvability • Often a physical property can be used to classify matter . . .like metals have a luster or may have the ability to conduct heat and electricity.

  3. Review on Chemical Properties • A chemical property is a characteristic of a pure substance that describes its ability to CHANGE into a completely different substance. This chemical property can often be used to classify substances just like a physical property. • Remember—it describes an ability to CHANGE into a different substance. Think of iron reacting with water and air. That equals a pile of rust. Most of the time you cannot put the changed substance back the way it started out either!!

  4. Bubbling Blobs Lab Review • Think back to when you put the oil and water together. Was that a chemical change? • NO! • What happened when you put the colored pill into the water? Was there a chemical change there? • YUP! The fizzing of the tablet released CO2 as a gas and released the colored dye. We cannot get the CO2 back but we could get the dye back by evaporating the water and the dye would remain as a dry powder in the bottom of the glass. You have both things going on here.

  5. Bubbling Blobs

  6. Lets make a list of the chemical and physical properties of bubbling blobs: • Chemical Physical

  7. So we can conclude that bubbling blobs had both types of changes. • What about our GAK? • Elmer’s glue and Borax laundry booster

  8. Particles in Motion? • What were the changes going on in this lab? What about temperature?

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