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Diagrams and Graphs.

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Presentation on theme: "Diagrams and Graphs."— Presentation transcript:

1 Diagrams and Graphs

2 Diagrams Graphs Particle Diagrams Bohr Models Emission Spectra
Electron Dot Structures Structural Formulas Electrochemical Cells Heating Curves Gas Laws Potential Energy Diagrams

3 Particle Diagrams Solids, Liquids, Gases Solid Liquid Gas

4 Particle Diagrams Element, Compound, Mixtures Elements Compounds

5 Bohr Model Shows protons and neutrons in nucleus and the number of electrons in each energy level e 11p 12n

6 Emission Spectra Light emitted from an atom when an electron moves toward lower energy levels

7 Electron Dot Structures
Diagrams that show valence electrons, usually as dots Ions must have a charge O Na+ F-

8 O O H N H C H O=C=O H Cl Structural Formulas
Shared electrons are written as a line, unshared electrons are not written Each line represents 2 electrons O O H N H C H O=C=O H Cl

9 Electrochemical Cells
any device that converts chemical energy into electrical energy or electrical energy into chemical energy Voltaic (Chemical) Spontaneous flow of electrons Chemical Energy converted to Electrical Energy Electrolytic Electrons are pushed by an outside power source Electrical Energy converted to Chemical Energy

10 Electrochemical Cell Components
Cathode Electrode where reduction takes place (RED CAT) Anode Electrode where oxidation takes place (AN OX) Salt Bridge Allows for the passage of ions, not electrons Switch Device that opens(turns off) and closes(turns on) circuit

11 Voltaic Cell Example

12 Electrolytic Cell Example

13

14 Heating Curves Diagonal lines are phases
Horizontal lines are phase changes Time (s) Temp (˚C) Gas Liquid Solid

15 Heating Curves Diagonal lines are phases
Horizontal lines are phase changes Vaporization Condensation Time (s) Temp (˚C) Melting Freezing

16 Gas Laws T V V P n V T P

17 Exothermic Reaction EA Energy PEReactants ΔH PEProducts
Reaction Process Energy EA PEReactants ΔH PEProducts

18 Endothermic Reaction EA Energy PEProducts ΔH PEReactants
Reaction Process ΔH PEProducts PEReactants


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