Crossword

Complete the crossword, then click on "Check" to check your answer.
1          2         
               
      3           
               
    4     5          
               
               
   6          7    8    
               
               
   9              
               
               
               
       10          
               
      11           
               

Across:

1. THE PROCESS BY WHICH POLYMERS ARE MADE.
3. THIS SPEED UP A CHEMICAL REACTION
5. MAKING LARGE HYDROCARBONS INTO SMALLER USEFUL ONES
6. MANY SMALL MONOMER UNITS JOINED TOGETHER
9. USED TO TEST FOR UNSATURATED HYDROCARBONS
10. THE SMALLEST ALKANE
11. ETHANE AND PROPANE BELONG TO THIS GROUP OF HYDROCARBONS

Down:

1. POLYMER MADE FROM ETHENE MONOMERS
2. HYDROCARBON WITH NO DOUBLE C=C BONDS
4. SMALL UNITS WHICH JOIN TO FORM POLYMERS
7. BROMINE WATER TURNS FROM BROWN TO COLOURLESS WITH THIS TYPE OF HYDROCARBON
8. ETHENE IS ONE OF THIS GROUP OF HYDROCARBONS