2016 AQA GCSE Chemistry Unofficial mark scheme 2016

Was the question about what colour it changes to was it green?

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1)
Draw the diagram - 2 on the inner shell, 3 on the outershell
a) i) Proton, Neutrons - Neutrons neutral charge, Protons +1 charge (mis-read and wrote about electrons )
a) ii) Got 8 on its outer shell, doesen't have 1 blah blah.

2) a) i0 20.3

Black - incomplete combustion/zoot C
Hexane - more flammable, less smoke, and it produced more energy.

3) Thermal decomposition, Copper Oxide

Question 1
nucleus( 1 mark)
( +1), electrons( -1), neutron is uncharged( 3 marks)

Do you think i'd get the marl for saying protons are positive and neutrons are neutral?

@ScienceFantatic


Um the question on recycling, reusing and landfill.
Recycling is used to save raw materials...

No i believe it was talking about z which was the nucleus

and do you think you had to include a disadvantage of reusing materials? I listed 3 disadvantages of landfill or something

I'll add that in I talked about saving energy and reducing fossil fuels

Which exam board is this for?

I did, I said landfill-destroying habitats, pollution
reusing-uses weak materials, unsafe
recycling- saves raw materials

Any other questions?

Soot is produced due to incomplete combustion
(just trying to remember questions to help )

I did, I said landfill-destroying habitats, pollution
reusing-uses weak materials, unsafe
recycling- saves raw materials

Yeah I got that I think think I need about 5 more marks

I think so because I remember the question saying give 3 reasons why the car is reused and not recycled or sent to landfill sites.

I think so because I remember the question saying give 3 reasons why the car is reused and not recycled or sent to landfill sites.

no the question was give 3 reasons why the car is recycled and not reused or sent to landfill sites.

Recycling can be more costly due to the process of eliminating impurities. Wasn't question what was the pros and cons of REUSING not recycling?

Reusing means no more land fill mass will accumulate. No process of purifying the substance. Less cost in reusing.

The cons I can't remember what I wrote at the moment!

Recycling can be more costly due to the process of eliminating impurities. Wasn't question what was the pros and cons of REUSING not recycling?

Reusing means no more land fill mass will accumulate. No process of purifying the substance. Less cost in reusing.

The cons I can't remember what I wrote at the moment!