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Green chem 7

QuestionAnswer
ALTERNATIVE TO CFCS HAVE BEEN REPLACED WITH ... HCFCS E.G. HCFC -22 WITH FORMULA CHCLF2.
THE PRESENCE OF HYDROGEN IN HCFCS ALLOWS MOLECULE ... TO BE OXIDISED & CL ATOMS PRODUCED AT LOWER ALTITUDES WHERE REMOVED BY WATER & RETURNED TO EARTH.
HCFCS DON’T DESTROY THE OZONE, BUT ARE ... POTENT GREENHOUSE GASES.
NITROGEN AND OXYGEN PRODUCE... NO.
WHERE IS NO PRODUCED... IN LIGHTENING STRIKES IN CAR/JET ENGINES.
RAIN WASH OUT... MOST NITRIC OXIDE. BY JETS FLY NEAR STRATOSPHERE .
NO PRODUCED BY JET RISES ... TO OZONE WHERE REACTS IN SIMILAR TO CFCS .
A NITROGEN ATOM HAS 7 ELECTRONS SO NITRIC OXIDE IS A ... FREE RADICAL. THERE IS AN ODD NUMBER OF ELECTRONS IN THE PAIR SO ONE ELECTRON UNPAIRED.
NITRIC OXIDES REMOVES AN... OXYGEN ATOM FROM OZONE NO + 03 à NO2 +02.
NO + 03 à NO2 +02... THEN... NO2 + O. à NO + 02.
NITRIC OXIDE IS REFORMED AND... CAN DESTROY MORE OZONE. HAS SAME OVERALL REACTION.
WHAT DO ICE CLOUDS HAVE IN THEM ... CHLORINE AS CHLORINE NITRATE . WHEN THE CLOUDS EVAPORATE THE CLN ...
DECOMPOSE INTO CHLORINE. THEN IS PHOTOLYSIS BY LIGHT INTO RADICALS.
THE ABUNDANCE OF RADICALS CAUSE... RAPID DEPLETION OF OZONE.
GRADUALLY THE OZONE CONCENTRATION BUILD UP ONLY... TO BE DESTROYED AGAIN NEXT SPRING.
Created by: ufuoma
 

 



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