Make the following models using the Polylab set show them to your instructor to make sure they are correct.

1. Methane (CH₄)  -  single bond – look at article for help
   
    
2. The 6 Hydrogen atoms and the 2 Carbon atoms combine to form Ethane (C₂H₆).   This is a single bond. 
   
   
   
    
3.  Propane(C₃H₈) This method can be continued to form Propane (C₃H₈), which is an inflammable liquid. Campers often use Propane in lamps and heaters.  This is a single bond.
   
   
   
    
4. Butane (C₄H₁₀) is a highly flammable, colorless, odorless and easily liquefied.  It is single bonded (alkane).  (No help on this one, try and figure out how to make.)
   
   
   
    
5. Ethylene  (double bond)  -  C₂H₄ (look at reader)
   
    
6. Acetylene (triple bond)   - C₂H₂  (look at reader)