PHASE CHANGES Unit I - 2 Hebden 59-61. Chemical and Physical Characteristics of Compounds Property...
-
Upload
austen-walton -
Category
Documents
-
view
213 -
download
0
Transcript of PHASE CHANGES Unit I - 2 Hebden 59-61. Chemical and Physical Characteristics of Compounds Property...
![Page 1: PHASE CHANGES Unit I - 2 Hebden 59-61. Chemical and Physical Characteristics of Compounds Property is a characteristic of a material that can be determined.](https://reader035.fdocuments.net/reader035/viewer/2022070415/5697bfd41a28abf838caccc9/html5/thumbnails/1.jpg)
PHASE CHANGES
Unit I - 2
Hebden 59-61
![Page 2: PHASE CHANGES Unit I - 2 Hebden 59-61. Chemical and Physical Characteristics of Compounds Property is a characteristic of a material that can be determined.](https://reader035.fdocuments.net/reader035/viewer/2022070415/5697bfd41a28abf838caccc9/html5/thumbnails/2.jpg)
Chemical and Physical Characteristics of Compounds
Property is a characteristic of a material that can be determined by observation or measurement.
Allows one material to be distinguished from another
![Page 3: PHASE CHANGES Unit I - 2 Hebden 59-61. Chemical and Physical Characteristics of Compounds Property is a characteristic of a material that can be determined.](https://reader035.fdocuments.net/reader035/viewer/2022070415/5697bfd41a28abf838caccc9/html5/thumbnails/3.jpg)
Physical Properties
Characteristic of a substance that do not involve chemical change
Physical Change Does not form a new substance Only the state, shape or external
appearance of matter is changed
![Page 4: PHASE CHANGES Unit I - 2 Hebden 59-61. Chemical and Physical Characteristics of Compounds Property is a characteristic of a material that can be determined.](https://reader035.fdocuments.net/reader035/viewer/2022070415/5697bfd41a28abf838caccc9/html5/thumbnails/4.jpg)
Physical Change
Phase Change
![Page 5: PHASE CHANGES Unit I - 2 Hebden 59-61. Chemical and Physical Characteristics of Compounds Property is a characteristic of a material that can be determined.](https://reader035.fdocuments.net/reader035/viewer/2022070415/5697bfd41a28abf838caccc9/html5/thumbnails/5.jpg)
PHASE CHANGE
![Page 6: PHASE CHANGES Unit I - 2 Hebden 59-61. Chemical and Physical Characteristics of Compounds Property is a characteristic of a material that can be determined.](https://reader035.fdocuments.net/reader035/viewer/2022070415/5697bfd41a28abf838caccc9/html5/thumbnails/6.jpg)
PHASE CHANGE
![Page 7: PHASE CHANGES Unit I - 2 Hebden 59-61. Chemical and Physical Characteristics of Compounds Property is a characteristic of a material that can be determined.](https://reader035.fdocuments.net/reader035/viewer/2022070415/5697bfd41a28abf838caccc9/html5/thumbnails/7.jpg)
PHASE CHANGE
![Page 8: PHASE CHANGES Unit I - 2 Hebden 59-61. Chemical and Physical Characteristics of Compounds Property is a characteristic of a material that can be determined.](https://reader035.fdocuments.net/reader035/viewer/2022070415/5697bfd41a28abf838caccc9/html5/thumbnails/8.jpg)
PHASE CHANGE
![Page 9: PHASE CHANGES Unit I - 2 Hebden 59-61. Chemical and Physical Characteristics of Compounds Property is a characteristic of a material that can be determined.](https://reader035.fdocuments.net/reader035/viewer/2022070415/5697bfd41a28abf838caccc9/html5/thumbnails/9.jpg)
PHASE CHANGE
![Page 10: PHASE CHANGES Unit I - 2 Hebden 59-61. Chemical and Physical Characteristics of Compounds Property is a characteristic of a material that can be determined.](https://reader035.fdocuments.net/reader035/viewer/2022070415/5697bfd41a28abf838caccc9/html5/thumbnails/10.jpg)
PHASE CHANGE
solid
Melting/freezingliquid
gas
Boiling or condensing
![Page 11: PHASE CHANGES Unit I - 2 Hebden 59-61. Chemical and Physical Characteristics of Compounds Property is a characteristic of a material that can be determined.](https://reader035.fdocuments.net/reader035/viewer/2022070415/5697bfd41a28abf838caccc9/html5/thumbnails/11.jpg)
PHASE CHANGEPhase changes occur on the level portion of the graph only
Heat is used for a phase change so the temperature doesn’t increase
![Page 12: PHASE CHANGES Unit I - 2 Hebden 59-61. Chemical and Physical Characteristics of Compounds Property is a characteristic of a material that can be determined.](https://reader035.fdocuments.net/reader035/viewer/2022070415/5697bfd41a28abf838caccc9/html5/thumbnails/12.jpg)
Physical change
Atoms are not rearranged to make new substances
Examples cutting paper, shaping wood etc
![Page 13: PHASE CHANGES Unit I - 2 Hebden 59-61. Chemical and Physical Characteristics of Compounds Property is a characteristic of a material that can be determined.](https://reader035.fdocuments.net/reader035/viewer/2022070415/5697bfd41a28abf838caccc9/html5/thumbnails/13.jpg)
Physical Properties
Include: Malleability (ability to be hammered without
breaking) Ductility (ability to be stretched into wires) Magnetism Conductivity State (solid, liquid, gas)
![Page 14: PHASE CHANGES Unit I - 2 Hebden 59-61. Chemical and Physical Characteristics of Compounds Property is a characteristic of a material that can be determined.](https://reader035.fdocuments.net/reader035/viewer/2022070415/5697bfd41a28abf838caccc9/html5/thumbnails/14.jpg)
Chemical Properties
Are ways in which a substance reacts with other substances or undergoes a chemical change
Include: The ability to burn The ability to react with water Reaction with blue and red litmus paper
![Page 15: PHASE CHANGES Unit I - 2 Hebden 59-61. Chemical and Physical Characteristics of Compounds Property is a characteristic of a material that can be determined.](https://reader035.fdocuments.net/reader035/viewer/2022070415/5697bfd41a28abf838caccc9/html5/thumbnails/15.jpg)
Chemical Change One or more new substances are formed in
a chemical reaction New substances formed by a chemical
reaction or chemical change have properties different from those of the starting materials
![Page 16: PHASE CHANGES Unit I - 2 Hebden 59-61. Chemical and Physical Characteristics of Compounds Property is a characteristic of a material that can be determined.](https://reader035.fdocuments.net/reader035/viewer/2022070415/5697bfd41a28abf838caccc9/html5/thumbnails/16.jpg)
Chemical Reactions
In chemical reactions The starting
materials are called
reactants The resulting
materials are called
products
![Page 17: PHASE CHANGES Unit I - 2 Hebden 59-61. Chemical and Physical Characteristics of Compounds Property is a characteristic of a material that can be determined.](https://reader035.fdocuments.net/reader035/viewer/2022070415/5697bfd41a28abf838caccc9/html5/thumbnails/17.jpg)
Signs --- that a chemical change has occurred
Bubbles of gas appear Precipitate forms Change in colour Temperature change Light is emitted A change in volume A change in conductivity A change in melting or boiling point
![Page 18: PHASE CHANGES Unit I - 2 Hebden 59-61. Chemical and Physical Characteristics of Compounds Property is a characteristic of a material that can be determined.](https://reader035.fdocuments.net/reader035/viewer/2022070415/5697bfd41a28abf838caccc9/html5/thumbnails/18.jpg)
Chemical Change