WARNING This slide show will make you hungry

WARNING This slide show will make you hungry

Homogeneous Mixtures Versus Heterogeneous Mixtures MS 7. 1 Distinguish between pure substances and mixtures (mechanical mixtures and solutions) using the particle model of matter

Homogeneous Mixtures or Solutions • Solution is a solute that is dissolved in a solvent The mixture is not always visible after being mixed together For example: In pudding, you cannot see the powdered chocolate mixed in milk after the homogeneous mixture or solution is mixed

Parts of a Solution (Homogeneous Mixture) • Solute – the part of a solution that is being dissolved (usually the lesser amount) • Solvent – the part of a solution that dissolves the solute (usually the greater amount) Remember: solute + solvent = solution

What is the difference between solutions and homogeneous mixtures?

What is the solute and the solvent in this homogeneous mixture or solution?

Heterogeneous (Mechanical) Mixture • You can see the different items after it is still all mixed together

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You can get suspensions from heterogeneous mixtures.

Oil and water are heterogeneous mixtures that create a suspension because they refuse to mix.

Heterogeneous Mixtures/ Suspension Oil Spill Disaster Valdez, Alaska 1989

This spill created a suspension too. Gulf of Mexico (Caribbean), 2010 You can see the oil settling on top of the water. If you can see the two or more items being mixed, it is a heterogeneous mixture.

More suspension oil spills…

What is the difference between a heterogeneous mixture and a mechanical mixture?

Which one is NOT heterogeneous or a mechanical mixture?

Did you know? ? • Homo means “the same” • Hetero means “different”