1. MM S4 K12 Present information from secondary sources to write the equations to show the reactions involving CFCs and ozone to demonstrate the removal of ozone from the atmosphere. CFCs are stable and are long lasting. They slowly migrate to the stratosphere. In the stratosphere… CFCl 3 (+uv) CF + Cl

2. MM S4 K12 Present information from secondary sources to write the equations to show the reactions involving CFCs and ozone to demonstrate the removal of ozone from the atmosphere. Once the chlorine radical has been generated Cl +O3O3 ClO +O2O2 ClO +O Cl +O2O2 O3O3 +O 2O 2

3. MM S4 K12 Present information from secondary sources to write the equations to show the reactions involving CFCs and ozone to demonstrate the removal of ozone from the atmosphere. It seems like thats it….. but no, wait.. Whats this?

4. MM S4 K12 Present information from secondary sources to write the equations to show the reactions involving CFCs and ozone to demonstrate the removal of ozone from the atmosphere. Once the chlorine radical has been generated Cl +O3O3 ClO +O2O2 ClO +O Cl +O2O2 Disaster.. It happens again

5. MM S4 K12 Present information from secondary sources to write the equations to show the reactions involving CFCs and ozone to demonstrate the removal of ozone from the atmosphere. Once the chlorine radical has been generated Cl +O3O3 ClO +O2O2 ClO +O Cl +O2O2 And again

6. MM S4 K12 Present information from secondary sources to write the equations to show the reactions involving CFCs and ozone to demonstrate the removal of ozone from the atmosphere. Once the chlorine radical has been generated Cl +O3O3 ClO +O2O2 ClO +O Cl +O2O2

7. MM S4 K12 Present information from secondary sources to write the equations to show the reactions involving CFCs and ozone to demonstrate the removal of ozone from the atmosphere. Once the chlorine radical has been generated Cl +O 3 ClO +O 2 ClO +O Cl +O 2 And again. For about 100,000 times for every Cl radical The net result is the destruction of huge amounts of ozone in the stratosphere because the chlorine radical is regenerated and acts as a catalyst.