chemistry unit 2 PPQ Flashcards
(3 cards)
1
Q
A
2
Q
Explain why HFCs have replaced CFCS (4)
A
CFCs produce chlorine radicals / Cl* (1)
these destroy the ozone layer (1)
in HFCs C—F / C—H / C—C bonds are too strong to be broken by UV
radiation (1)
to form radicals (1)
3
Q
A
