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Mixtures
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www.brainybetty.com2 A mixture is a combination of two or more substances where there is no chemical combination or reaction.
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www.brainybetty.com3 Mixtures combine physically in no specific proportions. They just mix.
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www.brainybetty.com4 Solids, liquids and gases can be combined to create a mixture.
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www.brainybetty.com5 When you add material to a gas or liquid, the material you add is called the solute. The material you are adding to is called the solvent.
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www.brainybetty.com6 When you create a mixture, there are no new substances formed. Each part of a mixture keeps its own properties.
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www.brainybetty.com7 Mixtures can be heterogeneous or homogeneous.
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www.brainybetty.com8 Heterogeneous mixtures are those where the substances are not distributed evenly. EX: A tossed green salad.
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www.brainybetty.com9 Homogeneous mixtures are those where the materials are evenly distributed throughout. EX:Homogenized milk is an example.
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www.brainybetty.com10 Mixtures can be classified into three types: suspension, colloidal and solution. Some liquid mixtures are solutions.
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www.brainybetty.com11 Suspension mixtures have larger particles and are heterogeneous. Most mixtures are suspension mixtures. Italian salad dressing is a good example.
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www.brainybetty.com12 Colloidal mixtures fall between suspension and solution mixtures. The ingredients in colloidal mixtures are smaller and usually homogeneous. EX: Oobleck
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www.brainybetty.com13 Solutions are homogeneous mixtures that consist of microscopic particles and evenly spread out molecules. EX: Kool-Aid or Iced Tea
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www.brainybetty.com14 You can separate a simple mixture by physical means. No chemical reaction is needed.
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