1. Don Showalter world of chem salt vs sugar
Electric pickle
Link to Molten salt

3. Electrical Conductivity and Models of Bonding
Electric current – Flow of Charge (+ or – ions or electrons).
Link to Battery animation
MOVING ELECTRONS
MOVING IONS

4. 2 Conditions to conduct electricity
1) Charged particles present (electrons or ions)
2) Mobility – charged particles must be able to move

5. COVALENTLY BONDED SUBSTANCES DON’T FORM IONS WHEN DISSOLVED IN WATER
NOTE: ONLY NEUTRAL MOLECULES PRESENT; NO FULLY CHARGED PARTICLES
NEUTRAL ETHANOL DISSOLVED IN WATER
NEUTRAL SUGAR MOLECULES DISSOLVED IN WATER

6. Conductivity of metals – Moving electrons carry charge

7. nonElectrolyte, weak electrolyte, strong electrolyte solutions

8. CONDUCTIVITY OF IONIC COMPOUNDS

9. Solid salt – ionic lattice
IoNS LOCKED INTO POSITION BY MULTIPLE ELECTROSTATIC ATTRACTIONs
EACH ION IS BONDED TO 6 IONS OF THE OPPOSITE CHARGE

10. Link to Molten NaCl Molten sodium chloride is an excellent conductor
Moving ions free to move past each other
Link to Molten NaCl

11. IONIC COMPOUNDS SEPARATE INTO IONS IN SOLUTION
WATER IS POLAR; IT HAS A PARTIALLY NEGATIVE OXYGEN SIDE AND PARTIALLY POSITIVE HYDROGEN SIDES THAT WILL ATTRACT IONS OUT OF THE LATTICE
LINK TO SALT DISSOLVING ANIMATION
Link to video salt vs sugar

12. Conductivity of ionic compounds

13. Link to NaCl
Link to AlBr3
Link to Li2O Link to MgCl2