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Edexcel IAL Chemistry Unit 02 - 09th of June 2017 Watch

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    Ok I couldn't find a thread for this exam so I decided to create one. We can discuss questions and share resources.
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    Sorry you've not had any responses about this. Are you sure you've posted in the right place? Here's a link to our subject forum which should help get you more responses if you post there.


    Just quoting in Danny Dorito so she can move the thread if needed :wizard:
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    (Original post by Reshyna)
    Ok I couldn't find a thread for this exam so I decided to create one. We can discuss questions and share resources.
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    Hey You may want to have a browse around the Chemistry exams forum also, incase someone else has posted about this same exam you are taking, but I've moved this thread into that forum so you get more replies hopefully good luck with your exam
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    (Original post by James A)
    Hey You may want to have a browse around the Chemistry exams forum also, incase someone else has posted about this same exam you are taking, but I've moved this thread into that forum so you get more replies hopefully good luck with your exam
    Thanx!
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    Which molecules will absorb IR radiation and what causes them to absorb IR radiation?

    Carbon monoxide, Carbon dioxide, Nitric oxide, Nitrogen dioxide, Nitrogen, Oxygen
    Any help will be appreciated.
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    (Original post by Reshyna)
    Which molecules will absorb IR radiation and what causes them to absorb IR radiation?

    Carbon monoxide, Carbon dioxide, Nitric oxide, Nitrogen dioxide, Nitrogen, Oxygen
    Any help will be appreciated.
    I think they all absorb IR radiation except for Nitrogen and Oxygen. This is because the others have polar bonds (I'm not entirely sure). But I know for a fact that compounds of the same element don't absorb IR radiation.

    Thank you for making this thread I couldn't find any threads to do with unit 2 chem. How is revision going?

    Edit: I just noticed you're setting the exam in june.. I'm setting mine in jan which is after tomorrow!
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    (Original post by LaylaM99)
    I think they all absorb IR radiation except for Nitrogen and Oxygen. This is because the others have polar bonds (I'm not entirely sure). But I know for a fact that compounds of the same element don't absorb IR radiation.

    Thank you for making this thread I couldn't find any threads to do with unit 2 chem. How is revision going?

    Edit: I just noticed you're setting the exam in june.. I'm setting mine in jan which is after tomorrow!
    Thank you so much for your help Layla.

    Best of luck for your exams btw :thumbsup:
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    (Original post by Reshyna)
    Thank you so much for your help Layla.

    Best of luck for your exams btw :thumbsup:
    Anytime ! And thank you ! :heart:
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    This is really urgent. Please, anyone help me with this doubt
    How can iodine bond with 3 oxygen atoms in Iodine pentoxide?
    What is the maximum number of bonds iodine can form?
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    (Original post by Reshyna)
    This is really urgent. Please, anyone help me with this doubt
    How can iodine bond with 3 oxygen atoms in Iodine pentoxide?
    What is the maximum number of bonds iodine can form?
    Just woken up, think about how many electrons it has to bond covalently
    what is a covalent bond?
    Remember you can also have dative covalent too.


    Sorry I will be a while
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    (Original post by CheeseIsVeg)
    Just woken up, think about how many electrons it has to bond covalently
    what is a covalent bond?
    Remember you can also have dative covalent too.


    Sorry I will be a while
    It's ok cheese.
    I'll try to understand that question. but thanks for giving me an idea.
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    Hey guys
    I thought this could be useful to you:
    https://www.thestudentroom.co.uk/sho...0#post70103720

    This is about bond angles
    And thanks to LaurenLovesMaths for answering
    And also thanks to agenttux, for asking the question.
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    I have a doubt. Plz anyone, help me with this:
    Is chloric acid a molecular or ionic compound?
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    (Original post by Reshyna)
    I have a doubt. Plz anyone, help me with this:
    Is chloric acid a molecular or ionic compound?
    Should be an ionic compound because its non-common name is Hydrogen Chlorate, compounds ending with -ate are polyatomic so they should be ionic compounds. But it's an acid so should be classified as such tbh.

    This is from what I remember though so I hope I am right :/
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    (Original post by wolfmoon88)
    Should be an ionic compound because its non-common name is Hydrogen Chlorate, compounds ending with -ate are polyatomic so they should be ionic compounds. But it's an acid so should be classified as such tbh.

    This is from what I remember though so I hope I am right :/
    I was watching a past paper work through, and in that, he drew the dot-and-cross diagram similar to that of an ionic compound. That's y I got a doubt.
    Thanks for helping me, wolfy :hugs:
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    (Original post by Reshyna)
    I was watching a past paper work through, and in that, he drew the dot-and-cross diagram similar to that of an ionic compound. That's y I got a doubt.
    Thanks for helping me, wolfy :hugs:
    :hugs: np! good luck with your studying!
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    Does anyone know how can we know whether a compound is having a dative covalent bond or just a covalent bond from its molecular structure?
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    Is everyone prepared for the exam?
    The exam's coming up in 11 days, so hope you guys prepare well, and get good results!
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    (Original post by Reshyna)
    Is everyone prepared for the exam?
    The exam's coming up in 11 days, so hope you guys prepare well, and get good results!
    thats nice.. i am not doing chem unit 2
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    (Original post by Reshyna)
    Is everyone prepared for the exam?
    The exam's coming up in 11 days, so hope you guys prepare well, and get good results!
    I'm not sitting this paper, but good luck ya'll !
 
 
 
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