1.5 Types of Substance Flashcards
What happens when an ionic compound is placed in water?
It often dissolves to form an aqueous solution
Why do Ionic compounds have high boiling and melting points?
Because a lot of energy is required to break many strong bonds
When melted or dissolved in water do Ionic compounds conduct electricity?
Yes
Do ionic compounds conduct electricity as solids?
No
Do substances that consist of small molecules conduct electricity?
No
Why are some simple molecular compounds soluble in water?
Because they can form intermolecular forces with water
Describe the melting and boiling points of simple molecular compounds
Low Boiling points and melting points
Giant covalent structures are made up of what?
Non metal elements
Describe the melting points of giant covalent structures
Very High
True or False? Some Giant covalent structures can conduct electricity
True
Graphite and Diamond are different forms of what?
Carbon
In Diamond each carbon is joined to how many other carbons covalently?
4
In graphite each carbon is joined to how many other carbons covalently?
3
Unlike diamond what can graphite do?
Conduct electricity
What is Graphene?
Single layer of Graphite
