1 / 5

Physical and Chemical Changes

Physical and Chemical Changes. Physical Change. Substance looks different, but it’s not Reversible Characteristic properties remain the same Types: Phase changes Dissolution Deformation. Phase Changes. Transformation of matter from one state to another

sauda
Download Presentation

Physical and Chemical Changes

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Physical and Chemical Changes

  2. Physical Change • Substance looks different, but it’s not • Reversible • Characteristic properties remain the same • Types: • Phase changes • Dissolution • Deformation

  3. Phase Changes • Transformation of matter from one state to another • States of matter : Solid, Liquid and Gas • Changes of state: • Fusion (melting) = S L • Vaporization (evaporation) = L G • Deposition = G S • Freezing (solidification) = L S • Sublimation = S G • Condensation = G L • See textbook figure 20on p. 191

  4. Chemical Changes The substance has changed It looks and is different Irreversible

  5. Signs of Chemical Change Colour change: rust, browning of an apple Bubbling/gas produced: vinegar + baking soda Precipitate formed: 2 solutions that mix and a solid forms in the new solution Heat or light given off: fireworks Temperature or mass change

More Related