1. Topic: Isomers Do Now: read and do pre-lab

2. Isomers Compounds with same molecular formula but different structural arrangement so different names The more C atoms there are the more isomers can have (more possible ways to arrange atoms)

3. Isomers Different structures = different physical and chemical properties Different structures = different physical and chemical properties Melting point of hexane −96 °C Melting point of dimethyl propane -16.6 °C Melting point of 2 methyl butane −161 °C

4. NOT ISOMER IF… They have the same name If can rotate/flip one to look like the other

5. ? same YES

6. ? same NO

7. ?same YES

8. ?same No