Hey there! Sign in to join this conversationNew here? Join for free

2016 AQA Chemistry C2 - Unofficial Mark Scheme 2016 Watch

  • View Poll Results: How many marks do you think you got out of 60?
    0 - 10 marks
    1.86%
    11 - 20 marks
    2.26%
    21 - 30 marks
    10.23%
    31 - 40 marks
    19.52%
    41 - 50 marks
    36.25%
    51 - 60 marks
    29.88%

    Offline

    2
    ReputationRep:
    (Original post by blueribbons99)
    **** I put 1-100nm has the mark gone


    Posted from TSR Mobile
    ***1000 not 100


    Posted from TSR Mobile
    Offline

    1
    ReputationRep:
    Did anyone else write about insulation on the beaker? Is this right or not? Since apparently it was measuring a decrease in the temperature, so it doesn't matter about insulation?
    Offline

    0
    ReputationRep:
    (Original post by jackbarry1999)
    1b) use a digital thermometer ~ more accurate ~ no human error

    I said use an thermometer attached to monitor and results can be shown on computer
    Offline

    0
    ReputationRep:
    Could you say to put a Lid on the beaker, to prevent heat loss? (QUESTION 1D)
    Offline

    1
    ReputationRep:
    (Original post by SkyeAmber)
    Does anyone know how many marks it'll be for a C out of all 3 papers combined?
    To get a C overall you need 240 UMS POINTS. So across the the 3 papers and Controlled Assessment you need a average of 60 UMS POINTS per unit. Hope this helps you a bit.
    Offline

    1
    ReputationRep:
    What was the half equation of chlorine??
    Offline

    1
    ReputationRep:
    (Original post by jackbarry1999)
    No it's because it's more reactive
    No it is less
    Offline

    2
    ReputationRep:
    (Original post by Megthomass)
    No it is less
    magnesiums more reactive than hydrogen so therefore it stays in the solution and hydrogen is formed at the negative electrode...
    Offline

    2
    ReputationRep:
    For the question where it said "why did the solution go cloudy?" The answer was sulfur was produced which is a precipitate - it came on jan 13. It cant have dissolved in water as precipitates are insoluble solids
    Offline

    18
    ReputationRep:
    (Original post by Gbisu)
    Could you say to put a Lid on the beaker, to prevent heat loss? (QUESTION 1D)
    That's what I wrote? It also prevents the solution from evaporating.
    Offline

    2
    ReputationRep:
    (Original post by Federerr)
    That's what I wrote? It also prevents the solution from evaporating.
    I put that too! You could've also said use styrofoam cup to reduce heat loss. It's the same type of question from 2015
    Offline

    18
    ReputationRep:
    (Original post by mmgnaahk123)
    I put that too! You could've also said use styrofoam cup to reduce heat loss. It's the same type of question from 2015
    I wrote that and crossed it out lool. I'm sure we'll get it right.

    If the solution evaporates the the test will become unfair, leaving you with in accurate results. Therefore I'm sure what we wrote is correct.
    Offline

    3
    ReputationRep:
    (Original post by Beyonce3716)
    What was the half equation of chlorine??
    2Cl- -----> Cl2 + 2e-
    Offline

    1
    ReputationRep:
    (Original post by Certified)
    Electrolysis -

    Gas produced was hydrogen
    Why : H+ ions are more reactive than Mg^2+

    Last question:

    Copper can can conduct electricity due to free delocalised electrons that carry a charge, they move about the giant lattice.

    Thermosetting is the better option because it can withstand high temperatures unlike thermosoftening. It has cross links made up of strong covalent bonds. They do not melt at high temperatures - high melting and boiling point.
    The reason for the electrolysis is because potassium is more reactive than hydrogen thus it displaces it and stays in solution with oxygen
    Offline

    18
    ReputationRep:
    (Original post by Jamie Vardy)
    2Cl- -----> Cl2 + 2e-
    Yes laddd! :wavey:
    Offline

    3
    ReputationRep:
    (Original post by Federerr)
    Yes laddd! :wavey:
    Only 1 mark but a lot of people wouldn't have got that. And remember every mark matters due to the high grade boundaries.
    Offline

    2
    ReputationRep:
    lol for why did the solution go cloudy question it was the exact same experiment with same equation and same question on the jan 2013 paper
    Offline

    18
    ReputationRep:
    (Original post by Jamie Vardy)
    Only 1 mark but a lot of people wouldn't have got that. And remember every mark matters due to the high grade boundaries.
    If it wasn't an easy exam, I wouldn't of really cared. But ONE mark can break or make the A* so I really don't want to loose any marks! So wohoo! on me and you getting that question right
    Offline

    3
    ReputationRep:
    (Original post by Federerr)
    If it wasn't an easy exam, I wouldn't of really cared. But ONE mark can break or make the A* so I really don't want to loose any marks! So wohoo! on me and you getting that question right
    Yeah. I made some stupid mistakes though like putting amount of sodium thiosulfate for the variables question rather than volume.
    Offline

    8
    ReputationRep:
    (Original post by sanchita)
    The reason for the electrolysis is because potassium is more reactive than hydrogen thus it displaces it and stays in solution with oxygen
    Was potassium even mentioned? I corrected my electrolysis answer multiple times ffs.
 
 
 
  • See more of what you like on The Student Room

    You can personalise what you see on TSR. Tell us a little about yourself to get started.

  • Poll
    Brexit voters: Do you stand by your vote?
  • See more of what you like on The Student Room

    You can personalise what you see on TSR. Tell us a little about yourself to get started.

  • The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

    Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

    Write a reply...
    Reply
    Hide
    Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.