2015 chem answers? (1 Viewer)

[dv798]

Has anyone got a teacher or tutor who's seen the 2015 HSC Chemistry exam and gotten worked solutions? I've seen answers put up here for other subjects so yeah, just in hope?
Also what were everyone's thoughts? I thought it was pretty reasonable considering the last 2013 and 14 papers.
Thanks in advance

 

[student6969]

I got 1. B 2. D 3. B 4. C 5. A 6. B 7. B 8. C 9. C 10. A 11. D 12.A 13. B 14. D 15. A 16. C 17. D 18. A 19. C 20. D

 

[tazmanmurray]

I got 1. B 2. D 3. B 4. C 5. A 6. B 7. B 8. C 9. C 10. A 11. D 12.A 13. B 14. D 15. A 16. C 17. D 18. A 19. C 20. D

I'm not sure about 6

check out this website, it shows how methane reacts with chlorine free radicals to make them hcl

http://www.chemguide.co.uk/mechanisms/freerad/ch4andcl2.html

 

[student6969]

In the syllabus HFCs are the 'official' replacement for CFCs, and hydrocarbons tend to have more of an environmental impact, which is what the question asked