Halogenoalkanes 13.1-13.3

Solubility 

• Halogenoalkanes are very slightly soluble in water 
• For them to disolve in water you have to break attractions between the molcules and break the H bonds between water molecules, both these cost energy 

Boiling point 

• Some boiling points below room temperature about 20C gases at room temp 
• All others liquid at room temp 
• Boiling point increases as number of carbon increases 

Bond polarity 

• Flourine most electronegative 
• Iodine least 
• electron pair in carbon- flourine bond will be dragged most toward halogen end 

Organic Mechanisms 

• Involve curly arrows which are used to show movement of electron pairs in a reaction 
• when bonds are broken or formed…