Date: Topic: Ch. 3.3 Glen Chem

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Presentation transcript:

Date: 3-11-2010 Topic: Ch. 3.3 Glen Chem Agenda Class ics Date: 3-11-2010 Topic: Ch. 3.3 Glen Chem

Table of Contents Overview Objective Warm-up Standard ESLR Notes Classwork Homework Dispatch Summary

Overview Contrast mixtures and substances. Classify mixtures as homogeneous or heterogeneous. List and describe several techniques used to separate mixtures.

Objective You will identify observable characteristics of chemical reactions.

How do mixtures and substances differ? Warm-up How do mixtures and substances differ?

Standard Atomic and Molecular 1.i * … quantum theory of atomic structure / historical importance of the Bohr model…

ESLR 5. Responsible Citizens

Notes Title: Mixtures of matter

Classwork Ch. 3 Handout p.441 1-6 Problems on overhead

Ch 14 Review and Discussion Ch 15 key terms Classwork ics3 Ch 14 Review and Discussion Ch 15 key terms

Homework Ics3 Ch 14 r/d due Ch 15 cards

Ch. 3 Handout – Due Friday 3-12 Homework Ch. 3 Handout – Due Friday 3-12

Dispatch When 50 mL of ethanol is mixed with 50 mL of water, solution forms. The volume of the final solution is less than 100 mL. Propose an explanation for this phenomenon. (Hint: Consider what you know about the space between particles in liquids.)

Does not blend smoothly together Notes Heterogeneous Does not blend smoothly together

Notes B. Homogenous Mixture has constant composition throughout

Notes C. Solutions homogenous mixtures 3 states of matter

Notes D. Solutions GG, GL, LG, LL, LS, SS

Notes E. Separating mixtures Filtration is a technique Distillation (Boil) Crystallization (Dissolve) Chromatography (Mobile)

Notes F. water, sand, and oil. How many phases are present? How could you separate this mixture into individual substances?