Download Mixture Solution Notes

Warm Up: Dissolving
Warm Up: Dissolving
1. What does “dissolve” mean?
2. What kinds of things dissolve?
3. What do things dissolve in?
Dissolve
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
Mixture: two or more different substances that
are mixed but not combined chemically
The chemical identities of the substances are not
changed.
Solution
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
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
Read the article
Answer: Check Your Learning Questions 1-4
Receive you materials for the “Try This” lab
Answer: The lab questions A and B in notebook