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Chemistry

Materials Science

Materials come in what two forms? Pure substances or mixtures
What happens when a material is mixed with another material? Gains particular different physical properties
What are alloys? Two or more different metals mixed together or a metal mixed with a small quantity of a non metal
What are composite materials? Made from two or more different materials
What are separation techniques based on and what are some examples? Seperation techniques are based off different physical and chemical properties, these include: Size, Density, Solubility, Electricity, Distillation
What features do nano-materials hold? Nanoscale features
What size are nano materials? 1-100nm diameter
Properties of nano materials vary from the ... Bulk
What three things are nano materials able to do? Adsorb, Transport molecules, Act as catalysts in some chemical reactions
What can nano materials do thats dangerous to humans? Travel through air, skin, and even cells via the bloodstream
When is separation by size used? Solid and a liquid preferably
When is separation by density used? Two immiscible liquids or a liquid and a solid
When is separation by solubility used? Two solids, add water
When is distillation or fractional distillation used? Two liquids, similar bp, fractional comes out in fractions.
When is separation by electricity used? Charged materials or magnetic elements
Created by: naomi_
 

 



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