Covelant Bonding Flashcards
Name an advantage and disadvantage of the displayed formula
+shows how atoms are connected on large molecules
- doesn’t show 3D structure
Name an advantage and disadvantage of the 3D model
+ shows 3D arrangement
- quickly gets confusing for large molecules
Name an advantage and disadvantage of the dot and cross diagram
+ shows where elections come from
- doesn’t show relative sizes
What is the melting point and boiling point like in simple molecular?
Low because of weak intermolecular forces
As the molecules get ______ the strength of the intermolecular forces _______ (simple molecular)
Bigger
Increases
Smaller
Decreases
Does the simple molecular structure conduct electricity?
No because
No free electrons
What is the melting point and boiling point like in giant covenant structures?
High because of strong covenant bonds
Do giant covenant structures conduct electricity?
No
No charges particles or free electrons
Only exception is graphite
What is a polymer?
Tons of small units linked together covalently to form a chain
Do polymers have stronger bonds than ionic or covenant bonds
Weaker so low mp and bp
What are polymers used for?
Plastic bags or containers
What are the uses of fullerenes?
Electronics
Drugs
Catalysts
Lubricants
