Warm Up Dissolving Warm Up Dissolving 1 What
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Warm Up: Dissolving
Warm Up: Dissolving 1. What does “dissolve” mean? 2. What kinds of things dissolve? 3. What do things dissolve in?
Dissolve: to make a solution of a substance by mixing with a liquid Example: to dissolve salt in water
Mixtures and Solutions Notes Mixture Molecular View – Particle Diagrams
Introduction to Mixtures and Solutions Video: The Science of Macaroni Salad Video Link
Mixture: two or more different substances that are mixed but not combined chemically The chemical identities of the substances are not changed.
Solution: a uniform mixture of two or more substances *Uniform meaning the solution has only one color, one texture, and appears to be one substance.
Colloid • Mixture where the particles are uniformly distributed but not chemically bonded. • Normally opaque (not see thru) • Substance that consists of particles dispersed in another substance that are too small to see. • Milk, fog, mud
Suspension • Mixture where the particles of the individual substances are big enough to see.
Concentration: the amount of a particular substance in a given quantity of mixture How concentrated do you like your hot chocolate?
Concentration
Draw a Particle Diagram Kool-Aid Molecular View Imagine that you could see the Kool-Aid particles at the molecular level…
Draw a Particle Diagram Kool-Aid Molecular View Draw a diagram of the particles of Kool-Aid and water when: 1. Right when the Kool-Aid powder is added 2. After you have stirred the mixture together.
Pure Substances and Mixtures Reading and Lab ü Read the article ü Answer: Check Your Learning Questions 1 -4 ü Receive you materials for the “Try This” lab ü Answer: The lab questions A and B in notebook
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- Mixing and dissolving
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- What is the term for the dissolving medium in a solution?
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- Sugar dissolving in tea diagram
- Factors that affect dissolving
- Hydroboration of alkynes
- A solution is formed by dissolving 45 grams
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