Hey there! Sign in to join this conversationNew here? Join for free
x Turn on thread page Beta
    Offline

    1
    ReputationRep:
    (Original post by homefind)
    Did anyone resit bio1? I did and found it went good, it was a decent paper so hopefully chemistry will be the same


    Posted from TSR Mobile
    I did and thought it went okay but I've made the worlds stupidest mistakes which will probably cost me my A


    Posted from TSR Mobile
    Offline

    0
    ReputationRep:
    (Original post by Matt_dragon)
    I did and thought it went okay but I've made the worlds stupidest mistakes which will probably cost me my A


    Posted from TSR Mobile


    DITTO
    Offline

    0
    ReputationRep:
    (Original post by Matt_dragon)
    I did and thought it went okay but I've made the worlds stupidest mistakes which will probably cost me my A


    Posted from TSR Mobile
    Ye I know I made a stupid mistake in the percentage Qs, I realised that I had done it wrong and was about to change it but then the exam ended, I was like Noooooo!!!!! haha


    Posted from TSR Mobile
    Offline

    0
    ReputationRep:
    (Original post by gooner1886)
    I've never seen it.

    Thanks for posting the explanations and the configurations though. I'll make a note of them so I don't get caught out!

    youre very welcome! i didnt understand the explanations but ill memorize them better safe than sorry ehhh? :rolleyes:
    Offline

    0
    ReputationRep:
    (Original post by homefind)
    Did anyone resit bio1? I did and found it went good, it was a decent paper so hopefully chemistry will be the same


    Posted from TSR Mobile
    I did the bio but did it for first time (doing chem for first time as well) I thought the paper was pretty good but three five markers??
    Offline

    13
    ReputationRep:
    (Original post by homefind)
    Did anyone resit bio1? I did and found it went good, it was a decent paper so hopefully chemistry will be the same


    Posted from TSR Mobile
    I do all my exams in June, so it wasn't a resit but I found it hard.

    Posted from TSR Mobile
    Offline

    0
    ReputationRep:
    (Original post by maryamnc)
    I did the bio but did it for first time (doing chem for first time as well) I thought the paper was pretty good but three five markers??
    Ye!! but they were good 5 markers!


    Posted from TSR Mobile
    Offline

    0
    ReputationRep:
    (Original post by x-Sophie-x)
    I do all my exams in June, so it wasn't a resit but I found it hard.

    Posted from TSR Mobile
    aah it was a resit for me


    Posted from TSR Mobile
    Offline

    0
    ReputationRep:
    (Original post by homefind)
    Ye!! but they were good 5 markers!


    Posted from TSR Mobile
    active transport was a ***** though
    Offline

    0
    ReputationRep:
    (Original post by sofiamalik_1995)
    When we fill orbitals we fill the one with a lower energy level first.... so for example 4s gets filled before 3d. So generally there is f orbital present in the 4th subshell but its not relevant here because the 5p orbital is of a lower energy level than the 4f orbital hence it gets filled first

    well thats the way ive been taught it.... but generally f orbitals aren't relevant till A2
    So ignore f orbitals until September then? Ok. Thanks for clearing it up!
    Offline

    0
    ReputationRep:
    (Original post by homefind)
    It is ionic - one non-metal and one metal atom


    Posted from TSR Mobile
    Might be a silly question but how do you instantly know that Sulfur is a non-metal?
    Offline

    0
    ReputationRep:
    (Original post by maryamnc)
    active transport was a ***** though
    Agreed haha


    Posted from TSR Mobile
    Offline

    0
    ReputationRep:
    (Original post by NabRoh)
    Might be a silly question but how do you instantly know that Sulfur is a non-metal?
    Because it isn't a metal?lol I don't know how to explain it lol, anyone else? erm well it isn't a transition and isn't in group 1 or 2


    Posted from TSR Mobile
    Offline

    0
    ReputationRep:
    (Original post by homefind)
    Because it isn't a metal?lol I don't know how to explain it lol, anyone else? erm well it isn't a transition and isn't in group 1 or 2


    Posted from TSR Mobile
    I used to have this coloured periodic table which showed which is non-metal and metal xD That's how I just remembered it

    Posted from TSR Mobile
    Offline

    0
    ReputationRep:
    Hi I have a question, I'm resiting my Unit 1 tomorrow, and I cant remember the units for the volume in the equation: Moles=ConcentrationXVolume Can anybody help me?
    Offline

    0
    ReputationRep:
    (Original post by Charlotte13245)
    Hi I have a question, I'm resiting my Unit 1 tomorrow, and I cant remember the units for the volume in the equation: Moles=ConcentrationXVolume Can anybody help me?
    volume is in dm3 (decimeters cubed)

    they usually give it in cm3 (centimeters cubed)

    if its in cm3 then divide the answer by 1000..
    Offline

    0
    ReputationRep:
    (Original post by Charlotte13245)
    Hi I have a question, I'm resiting my Unit 1 tomorrow, and I cant remember the units for the volume in the equation: Moles=ConcentrationXVolume Can anybody help me?

    Hello umm moles is just moles right? Concentration is dm^3 and volume is cm^3 (but remember to divide it by 1000 when calculating moles)
    Offline

    0
    ReputationRep:
    (Original post by Areen5)
    Hello umm moles is just moles right? Concentration is dm^3 and volume is cm^3 (but remember to divide it by 1000 when calculating moles)

    concentration is moldm^3

    and volume is dm^3 (you divide by 1000 because they usually give it in cm^3)

    remember that or they might trick you!
    Offline

    0
    ReputationRep:
    Hi guys to get to m3 from cm3 do you divide by 1000000?


    Posted from TSR Mobile
    Offline

    1
    ReputationRep:
    (Original post by a.jiwa)
    people,
    for AS AQA do we need to know about the anomalous electron configurations of chromium and copper?

    I just had a read through the old text book and it does mention it there but im not sure if its on specification or if aqa will decide to be nasty and throw it in the exam?

    The text book says :
    Copper and chromium electron configurations do not follow the pattern and are anomalous:

    - Chromium is 1s2 2s2 2p6 3s2 3p6 4s1 3d5
    NOT 1s2 2s2 2p6 3s2 3p6 4s2 3d4

    - copper is 1s2 2s2 2p6 3s2 3p6 4s1 3d10
    NOT 1s2 2s2 2p6 3s2 3p6 4s2 3d9

    The explanation of this which i didnt fully understand according to ye olde text book is:
    The reason for these anomoules is that both cases the outer sub levels are either full or half full and the structures shown are of lower energy and represent more stable arrangements..

    has ANYONE seen this come up in a past paper?
    It's to do with it being more stable with a full/half full 3d orbital because it's a transition metal. It's in chem5, i wasn't aware you needed to know it in chem 1 :confused:
 
 
 
Reply
Submit reply
Turn on thread page Beta
Updated: August 14, 2013
Poll
Do you agree with the proposed ban on plastic straws and cotton buds?

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.