types of mixtures. they are substances held together by physical forces, not chemical and are not...
TRANSCRIPT
![Page 1: Types of Mixtures. They are substances held together by physical forces, not chemical and are not chemically combined. This mean a mixture will keep it’s](https://reader036.vdocument.in/reader036/viewer/2022062519/5697bfc31a28abf838ca5873/html5/thumbnails/1.jpg)
Types of Mixtures
![Page 2: Types of Mixtures. They are substances held together by physical forces, not chemical and are not chemically combined. This mean a mixture will keep it’s](https://reader036.vdocument.in/reader036/viewer/2022062519/5697bfc31a28abf838ca5873/html5/thumbnails/2.jpg)
Mixtures
• They are substances held together by physical forces, not chemical and are not chemically combined.
•This mean a mixture will keep it’s own identity.
• Can be separated by simple physical methods.
Images are from http://www.chem4kids.com
![Page 3: Types of Mixtures. They are substances held together by physical forces, not chemical and are not chemically combined. This mean a mixture will keep it’s](https://reader036.vdocument.in/reader036/viewer/2022062519/5697bfc31a28abf838ca5873/html5/thumbnails/3.jpg)
Heterogeneous• The substances are not uniformly mixed.• Different substances can be seen.
• Example: Sand in a glass of water, cookie dough, lucky charms.
![Page 4: Types of Mixtures. They are substances held together by physical forces, not chemical and are not chemically combined. This mean a mixture will keep it’s](https://reader036.vdocument.in/reader036/viewer/2022062519/5697bfc31a28abf838ca5873/html5/thumbnails/4.jpg)
Homogeneous• Uniformly distributed (are evenly mixed)
•Particles are very small -- it is difficult to see each substance in the mixture.
• Examples: sugar and water, milk, air.
Images are from http://www.chem4kids.com
![Page 5: Types of Mixtures. They are substances held together by physical forces, not chemical and are not chemically combined. This mean a mixture will keep it’s](https://reader036.vdocument.in/reader036/viewer/2022062519/5697bfc31a28abf838ca5873/html5/thumbnails/5.jpg)
• Solutions – Well mixed mixtures that have the same properties throughout. (particles can’t bee seen and don’t settle over time)
Examples:
• Colloids – well mixed mixture that has undissolved particles that will not settle over time.
Examples:
Types of Homogeneous Mixtures
![Page 6: Types of Mixtures. They are substances held together by physical forces, not chemical and are not chemically combined. This mean a mixture will keep it’s](https://reader036.vdocument.in/reader036/viewer/2022062519/5697bfc31a28abf838ca5873/html5/thumbnails/6.jpg)
Separating Mixtures
![Page 7: Types of Mixtures. They are substances held together by physical forces, not chemical and are not chemically combined. This mean a mixture will keep it’s](https://reader036.vdocument.in/reader036/viewer/2022062519/5697bfc31a28abf838ca5873/html5/thumbnails/7.jpg)
Physically picking apart a Mixture by hand
Picking apart different substances from a mixture and placing them in different containers or piles
![Page 8: Types of Mixtures. They are substances held together by physical forces, not chemical and are not chemically combined. This mean a mixture will keep it’s](https://reader036.vdocument.in/reader036/viewer/2022062519/5697bfc31a28abf838ca5873/html5/thumbnails/8.jpg)
Sieving
• Using screens of different sizes to separate a mixture into its different sized components.
![Page 9: Types of Mixtures. They are substances held together by physical forces, not chemical and are not chemically combined. This mean a mixture will keep it’s](https://reader036.vdocument.in/reader036/viewer/2022062519/5697bfc31a28abf838ca5873/html5/thumbnails/9.jpg)
Magnets
• Magnetic attraction can be used to separate the metals Iron (Fe), Nickel (Ni), and Cobalt (Co) from a mixture.
![Page 10: Types of Mixtures. They are substances held together by physical forces, not chemical and are not chemically combined. This mean a mixture will keep it’s](https://reader036.vdocument.in/reader036/viewer/2022062519/5697bfc31a28abf838ca5873/html5/thumbnails/10.jpg)
Filtration
• Using filters to separate solid materials from liquids
![Page 11: Types of Mixtures. They are substances held together by physical forces, not chemical and are not chemically combined. This mean a mixture will keep it’s](https://reader036.vdocument.in/reader036/viewer/2022062519/5697bfc31a28abf838ca5873/html5/thumbnails/11.jpg)
Decanting
• Pouring off liquids for solids
![Page 12: Types of Mixtures. They are substances held together by physical forces, not chemical and are not chemically combined. This mean a mixture will keep it’s](https://reader036.vdocument.in/reader036/viewer/2022062519/5697bfc31a28abf838ca5873/html5/thumbnails/12.jpg)
Evaporation or Boiling
• Evaporation or boiling off a liquid separates liquids for dissolved solids
![Page 13: Types of Mixtures. They are substances held together by physical forces, not chemical and are not chemically combined. This mean a mixture will keep it’s](https://reader036.vdocument.in/reader036/viewer/2022062519/5697bfc31a28abf838ca5873/html5/thumbnails/13.jpg)
Distillation
• Separation of 2 liquids with different boiling point temperatures
![Page 14: Types of Mixtures. They are substances held together by physical forces, not chemical and are not chemically combined. This mean a mixture will keep it’s](https://reader036.vdocument.in/reader036/viewer/2022062519/5697bfc31a28abf838ca5873/html5/thumbnails/14.jpg)
Centrifuge• Separates substances of different densities• Solids from liquids• Different density liquids• Blood platelets from blood plasma