1. Types of Compounds

2. Compound: made up of two or more elements that react together to become stable.
CaCl2

3. Ionic Compounds properties:
contain a metal & non-metal.
Metal LOSES electrons, non-metal TAKES electrons.
A strong ionic bond forms.
Conduct electricity when melted or dissolved.
High melting point.
Hard and Brittle.

4. Molecular Compounds properties:
Contain 2 or more non-metals
Electrons are SHARED between atoms.
A weak covalent bond forms.
Don’t conduct electricity.
Low melting point.
Soft and Flexible 

5. Types of Compound Lab
Purpose: Determine which compounds are ionic or molecular based on their physical properties. Materials & Procedure: See lab handout. Observations: *All observations should be recorded as high/medium/low
Compound
Solubility
Conductivity
Melting
A. Sucrose
B. Sodium chloride
C. Corn starch
D. Magnesium bromide

6. Analysis:
1. Which of the compounds are ionic and which are molecular? Write a sentence to justify your decision.
2. Draw a Lewis diagram showing the formation of each ionic compound you identified.
3. Using the ionic compound’s name, find its chemical formula.