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PROPERTIES OF IONIC COMPOUNDS

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PROPERTIES OF IONIC COMPOUNDS - PowerPoint PPT Presentation


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PROPERTIES OF IONIC COMPOUNDS. IONIC COMPOUND. ONE WITH IONIC BONDS Ex: NaCl CuSO 4. OBJECTIVE. After completing this presentation you should be able to: L ist and explain 4 properties of ionic compounds List several people who care about each property and explain why they care.

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PowerPoint Slideshow about 'PROPERTIES OF IONIC COMPOUNDS' - karleigh-ross


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Presentation Transcript
ionic compound
IONIC COMPOUND
  • ONE WITH IONIC BONDS
  • Ex: NaCl

CuSO4

objective
OBJECTIVE

After completing this presentation you should be able to:

  • List and explain 4 properties of ionic compounds
  • List several people who care about each property and explain why they care
1 form crystals
1) FORM CRYSTALS
  • CRYSTAL: A REGULAR GEOMETRIC PATTERN
who cares
WHO CARES?
  • A) GEOLOGISTS
  • B) GEMOLOGISTS
  • * COMPUTER CHIP DESIGNERS
why form crystals
WHY FORM CRYSTALS?
  • IONS WANT CLOSEST PACKING POSSIBLE
  • A PATTERN FORMS

(THE PATTERN DEPENDS ON THE SIZE OF THE IONS)

2 high melting point
2) HIGH MELTING POINT
  • TEMPERATURE REQUIRED TO CHANGE THE SOLID TO LIQUID

AVERAGES 1000 C

who cares1
WHO CARES?
  • MATERIALS SCIENTISTS
  • SPECIALTY CERAMICS
  • PEOPLE WHO NEED HIGH MELTING POINT MATERIALS!!!
why high melting point
WHY HIGH MELTING POINT?
  • THE ELECTROSTATIC FORCE IS VERY STRONG
  • IT TAKES A LOT OF ENERGY TO BREAK THE FORCE TO ALLOW THE CRYSTAL TO MELT
3 dissolve in water
3) DISSOLVE IN WATER
  • THEY’RE WATER SOLUBLE
who cares2
WHO CARES?
  • FARMERS
  • MEDICAL PROFESSIONALS
  • ATHLETES
why water soluble
WHY WATER SOLUBLE?
  • WATER IS POLAR
  • THE IONS IN THE CRYSTAL ARE AS ATTRACTED TO THE WATER’S CHARGES AS TO OTHER IONS
  • THERE IS MORE WATER AND THE WATER MOVES MORE
4 they are electrolytes
4) THEY ARE ELECTROLYTES
  • ELECTROLYTE: CONDUCT ELECTRICITY WHEN DISSOLVED (OR MOLTEN)
who cares3
WHO CARES?
  • MEDICAL PROFESSIONALS
  • ANYONE WHO WANTS TO BE HEALTHY
electrolytes
ELECTROLYTES

Na+: important to many systems

K+: respiratory system

Ca+2& Mg+2: large muscle groups

Others include:

Zn+2, Li+, I-

why are they electrolytes
WHY ARE THEY ELECTROLYTES?
  • IONS WILL CONDUCT ELECTRICITY WHEN THEY CAN MOVE
  • WHEN DISSOLVED THEY ARE FREE TO MOVE AND CARRY THE ELECTRICAL CURRENT
  • WHEN SOLID THEY CAN’T MOVE THEREFORE THEY DON’T CONDUCT