Haloalkanes and the environment
0.0(0)
Studied by 1 person
Call Kai
Learn
Practice Test
Spaced Repetition
Match
Flashcards
Knowt PlayCard Sorting
1/7
Earn XP
Description and Tags
Last updated 1:06 PM on 1/18/23
Name | Mastery | Learn | Test | Matching | Spaced | Call with Kai |
|---|
No analytics yet
Send a link to your students to track their progress
8 Terms
1
New cards
What are CFCs?
CFCs are chlorofluorocarbons that contain only chlorine, fluorine and carbon.
2
New cards
What are some properties of CFCs?
* Stable
* Volatile
* Non-flammable
* Non-toxic
* Volatile
* Non-flammable
* Non-toxic
3
New cards
How is ozone formed naturally?
* When an oxygen molecule is broken down into two free radicals by ultraviolet radiation.
* The free radicals attack other oxygen molecules forming ozone.
* The free radicals attack other oxygen molecules forming ozone.
4
New cards
What do CFCs in the upper ozone absorb?
UV radiation and split to form chlorine free radicals.
5
New cards
What do chlorine free radicals do to the ozone layer?
Catalyse the destruction of ozone - they destroy ozone molecules and are then regenerated to destroy more ozone.
6
New cards
What other compound can also break down ozone?
Nitrogen oxides
7
New cards
When were CFCs banned?
In the 1970s
8
New cards
What is one alternative to CFCs?
Hydrochlorofluorocarbons and hydrofluorocarbons are being used on a temporary basis until safer products are developed.
