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States of Matter / gas Solid

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Presentation on theme: "States of Matter / gas Solid"— Presentation transcript:

1 States of Matter / gas Solid Solids – shape and volume don’t change (definite or fixed) Liquids – volume doesn’t change but takes shape of container Gas – takes volume and shape of container; compressible (can press particles closer together)

2 Mixtures vs Pure Substances
Mixed together Substances retain their properties Heterogeneous (different composition – can see the different components) Homogeneous (same throughout) called solutions; dissolving Chemically combined Elements (on periodic table) ex. Li Compounds (more than one element in same formula) ex. NaHCO3

3 Examples Salt water CH3OH Dirt Copper (Cu) Salad NaC2H3O2
Mixture (homo) Pure (compound) Mixture (hetero) Pure (element)

4 Graph Temperature Boiling Point? 100 Freezing Point? State at 105o C?
State at 105o C? Gas

5 Properties Physical - can be observed or measured Examples: Odor Color
Mass Boiling Point Chemical - ability to undergo a chemical reaction - creates a new substance (new identity) Examples: Ability to rot Ability to burn Corrosive

6 Changes Physical - change in appearance - change in state of matter
Examples: Melting Crushing Dissolving Chemical - creates a new substance (with new properties) - chemical reaction Examples: Burning Rusting

7 Changes Tarnishing Condensing steam Making coffee Chemical Physical


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