Turn on thread page Beta
    Offline

    2
    ReputationRep:
    (Original post by KingdomOfTheLord)
    I meant the question about why Mendeleev (?) left a gap, hun. Ughhh I knew it was 4P2 but I thought it said configuration (( It's so easy to lose marks in this paper, I think I've lost about 10-12 so far because of silly mistakes like not adding a minus How'd you find it?
    Thought it was a great paper honestly don't worry you still have unit 2, plus many people are bound to make mistakes due to exam pressure


    Posted from TSR Mobile
    Offline

    2
    ReputationRep:
    [QUOTE=f.loco;56114675]Do I get 2marks for saying
    Lime water goes cloudy as CO2 forms a precipitate (no named colour)

    Posted from TSR Mobile[/QUOTE
    Possibly although I think you would have had to say about the bubbles/fizzing since a gas is produced
    Offline

    0
    ReputationRep:
    For the observations of carbonates and lime water I also wrote that the calcium carbonate will be quicker to turn the water cloudy is this right?
    Offline

    2
    ReputationRep:
    (Original post by f.loco)
    Do I get 2marks for saying
    Lime water goes cloudy as CO2 forms a precipitate (no named colour)

    Posted from TSR Mobile
    I also said that for strontium carbonate gets cloudy slower because its more thermally stable- its probably the second mark.
    Offline

    3
    ReputationRep:
    (Original post by Marli-Ruth)
    Amount of lime water and amount of carbonate wbu
    I wrote mass of carbonate and volume of lime water too My friend said that the carbonate wasn't solid though? It was right?
    Offline

    0
    ReputationRep:
    (Original post by Supergirlxxxxxx)
    That's only used in isomerisation to separate branches from unbranced


    Posted from TSR Mobile
    Yeah that's what I thought, but I didn't know what else to put.
    Offline

    2
    ReputationRep:
    (Original post by Charlieboy101)
    For the observations of carbonates and lime water I also wrote that the calcium carbonate will be quicker to turn the water cloudy is this right?
    Yeah your right, with that question you'd say it turned Cloudy due to CO2 but CaCO3 would be more cloudy or take less time to turn cloudy because it is less stable


    Posted from TSR Mobile
    Offline

    3
    ReputationRep:
    (Original post by Supergirlxxxxxx)
    Thought it was a great paper honestly don't worry you still have unit 2, plus many people are bound to make mistakes due to exam pressure


    Posted from TSR Mobile
    Thanks for the motivation b xx I thought it was a lovely paper as well (thank the Lord), but afterwards I just realised my mistakes, would I get marks for talking about why the electrons repel in the bond angle q even if I got the angles themselves wrong?
    Offline

    1
    ReputationRep:
    Did anyone get 138.97 for the gas question? The way I did it was find the number of moles of the 2H2O2 whicu was 90/68 , then multiply it by 1.5 cos the reactant product ratio was 1:1.5 , then times it by 70 because 1 mole occupies 70dm3?
    Offline

    2
    ReputationRep:
    (Original post by -Gifted-)
    I also said that for strontium carbonate gets cloudy slower because its more thermally stable- its probably the second mark.
    You could get the second mark by saying that but it said what would you SEE
    I also put about it sr being slower
    Offline

    0
    ReputationRep:
    Also was the configuration 1s^2
    2s^2 2p^6 3s^2 3p^6 3d^10 4p^4
    Offline

    0
    ReputationRep:
    (Original post by f.loco)
    Do I get 2marks for saying
    Lime water goes cloudy as CO2 forms a precipitate (no named colour)

    Posted from TSR Mobile
    1 mark I think because you mentioned the limewater colour change
    Offline

    0
    ReputationRep:
    (Original post by Marli-Ruth)
    Amount of lime water and amount of carbonate wbu
    Exactly the same, volume of limewater and mass of carbonate
    Offline

    2
    ReputationRep:
    (Original post by KingdomOfTheLord)
    Thanks for the motivation b xx I thought it was a lovely paper as well (thank the Lord), but afterwards I just realised my mistakes, would I get marks for talking about why the electrons repel in the bond angle q even if I got the angles themselves wrong?
    Lol aw it's okay! Everyone makes mistakes, your not alone and yes even if the bond angle is wrong, for saying that the electron pairs repel as far apart as possible should get you the mark


    Posted from TSR Mobile
    Offline

    1
    ReputationRep:
    (Original post by Adam971)
    Yeah that's what I thought, but I didn't know what else to put.
    I put that it had a large surface area (used as a catalyst). I don't even know what I'm doing any more so I wouldn't trust that. I'm just failing one exam after the other
    Offline

    0
    ReputationRep:
    (Original post by Ruuth)
    I put that it had a large surface area (used as a catalyst). I don't even know what I'm doing any more so I wouldn't trust that. I'm just failing one exam after the other
    That sounds better than my answer
    Offline

    2
    ReputationRep:
    (Original post by Charlieboy101)
    Also was the configuration 1s^2
    2s^2 2p^6 3s^2 3p^6 3d^10 4p^4
    It didn't say to write the configuration out, it asked for the highest energy level, which is 4P2 but you'd still get a mark for it


    Posted from TSR Mobile
    Offline

    3
    ReputationRep:
    (Original post by Supergirlxxxxxx)
    Lol aw it's okay! Everyone makes mistakes, your not alone and yes even if the bond angle is wrong, for saying that the electron pairs repel as far apart as possible should get you the mark


    Posted from TSR Mobile
    Did you write that as well or...? Which q did you find the most difficult? I swear I was sitting there for about 3 mins trying to make sure an electron's mass was 0.0005
    (Sorry I'm asking so much, I made my account like 5 mins ago, I usually just read these threads lol )
    Offline

    2
    ReputationRep:
    (Original post by -Gifted-)
    Do you guys feel SiO3 2- will get atleast a mark ?
    Check http://sciencenotes.org/polyatomic-i...ilicate_anion/

    Posted from TSR Mobile
    Offline

    0
    ReputationRep:
    (Original post by Charlieboy101)
    Also was the configuration 1s^2
    2s^2 2p^6 3s^2 3p^6 3d^10 4p^4
    They might allow it. They asked for the 'main' energy levels (shells).

    I put 2,8,18,4
 
 
 
Reply
Submit reply
Turn on thread page Beta
Updated: June 2, 2015

1,497

students online now

800,000+

Exam discussions

Find your exam discussion here

Poll
Should predicted grades be removed from the uni application process

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.