Section 1.1 Classifying Matter. Classification by Composition: What is stuff made of?
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1 READ p Section 1.1 Classifying Matter 7.1 Classification by Composition: What is stuff made of? Qualitative: Expresses Composition Quantitative: Uses Measurements carbon hydrogen oxygen 42% carbon 51% oxygen 7% hydrogen Sucrose
2 7.2 Substance: Matter that has a uniform and definite composition. Contains only one kind of matter. Yes Not Sucrose Lemonade
3 Classification by Purity: Is it pure or a mixture? 7.3 Pure: Every bit of matter being examined is the same substance.
4 Classification by Purity: Is it pure or a mixture? 7.4 Mixture: Combination of two or more substances. + Water = Mixture
5 Classification by Purity: Is it pure or a mixture? 7.5 Ask yourself if it can be broken down into two or more substances
6 Separation of Mixtures 7.6 Separating mixtures into pure substances. Side Note: Separation is a huge part of chemistry and what chemist do
7 Separation of Mixtures 7.7 Many, many, many ways to separate substances. Easiest way is to take advantage of Physical Properties.
8 7.8 Physical Properties: Characteristic or condition of a substance that can be observed without changing the composition. Examples: mass, color, volume, boiling point. Physical Change: Change in matter that does not involve change in its chemical composition.
9 Two Kinds of Mixtures Heterogeneous: Not uniform in composition (different). 7.9 Homogeneous: Completely uniform composition (same).
10 Solution: Special name for homogeneous mixture Examples of Solutions: solid-liquid gas-gas metal-metal Bronze Alloy: Solutions that contain different metals.
11 Alloy Composition Example 7.11 Bronze Copper Zinc Tin Brass Copper Zinc Sterling Silver Silver Copper 14-Karat Gold Gold Silver Copper
12 TWO PARTS OF A SOLUTION 7.12 Solute: Substance that is least abundant - being dissolved. Solvent: Substance that is most abundant does the dissolving. Solute Solvent Kool-Aid
13 TWO PARTS OF A SOLUTION 7.12 Solute: Substance that is least abundant - being dissolved. Solvent: Substance that is most abundant does the dissolving. Solute Solvent Kool-Aid Kool-Aid Mix
14 TWO PARTS OF A SOLUTION 7.12 Solute: Substance that is least abundant - being dissolved. Solvent: Substance that is most abundant does the dissolving. Solute Solvent Kool-Aid Kool-Aid Mix Water
15 TWO PARTS OF A SOLUTION 7.12 Solute: Substance that is least abundant - being dissolved. Solvent: Substance that is most abundant does the dissolving. Solute Solvent Kool-Aid Chocolate Milk Kool-Aid Mix Water
16 TWO PARTS OF A SOLUTION 7.12 Solute: Substance that is least abundant - being dissolved. Solvent: Substance that is most abundant does the dissolving. Solute Solvent Kool-Aid Chocolate Milk Kool-Aid Mix Chocolate Water
17 TWO PARTS OF A SOLUTION 7.12 Solute: Substance that is least abundant - being dissolved. Solvent: Substance that is most abundant does the dissolving. Solute Solvent Kool-Aid Chocolate Milk Kool-Aid Mix Chocolate Water Milk
18 TWO PARTS OF A SOLUTION 7.12 Solute: Substance that is least abundant - being dissolved. Solvent: Substance that is most abundant does the dissolving. Solute Solvent Kool-Aid Chocolate Milk Kool-Aid Mix Chocolate Water Milk Soda Pop
19 TWO PARTS OF A SOLUTION 7.12 Solute: Substance that is least abundant - being dissolved. Solvent: Substance that is most abundant does the dissolving. Solute Solvent Kool-Aid Chocolate Milk Kool-Aid Mix Chocolate Water Milk Soda Pop CO 2
20 TWO PARTS OF A SOLUTION 7.12 Solute: Substance that is least abundant - being dissolved. Solvent: Substance that is most abundant does the dissolving. Solute Solvent Kool-Aid Chocolate Milk Kool-Aid Mix Chocolate Water Milk Soda Pop CO 2 Water
21 TWO PARTS OF A SOLUTION 7.12 Solute: Substance that is least abundant - being dissolved. Solvent: Substance that is most abundant does the dissolving. Solute Solvent Kool-Aid Chocolate Milk Kool-Aid Mix Chocolate Water Milk Soda Pop CO 2 Water Aqueous: Term for when the solvent is water.
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