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Chemistry c2 unit 2 aqa monday gcse 20th new spec Watch

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    Wasn't it exothermis because te temperature of the water increased?


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    (Original post by sammann123)
    Wasn't it exothermis because te temperature of the water increased?


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    It didn't though that was the temperature change. The beginning temperature was like 20 and the finishing temperature was like 14 ( example) so the temperature went down so it's endothermic


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    (Original post by 9examsleft)
    I put something about the co2 needing to be released will that get me a mark?


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    It was only a 1 mark question so I think you only need to state what cause it to rise. I said water vapour and co2..
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    (Original post by Elm Tree)
    It was only a 1 mark question so I think you only need to state what cause it to rise. I said water vapour and co2..
    Okay thanks


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    (Original post by 9examsleft)
    I put something about the co2 needing to be released will that get me a mark?


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    that's nearly exactly what i put (but i said it was produced and released)
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    (Original post by LjWol)
    that's exactly what i put
    Haha okay at least I'm not the only one


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    what about the question about pH for sulfuric acid?

    and the two observations that was made?
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    (Original post by denizcan619)
    what about the question about pH for sulfuric acid?

    and the two observations that was made?
    I put 3 what did you put? I think it's 1


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    It was exothermic because they were looking at the temperature change and it was increasing right?! Because I put endo first but I realised it was exo
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    So after seeing exothermic and endothermic, im beginning to feel that "heat energy" isnt quite right.

    Also, what did people put for the one about carbon dioxide being a gas, and did anyone relate the question back to mars? because ive heard some people that did and some people that didnt..
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    (Original post by 9examsleft)
    I put 3 what did you put? I think it's 1


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    They'll accept any acidic pH..
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    (Original post by sammann123)
    They'll accept any acidic pH..
    Okay thank you


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    (Original post by 9examsleft)
    It didn't though that was the temperature change. The beginning temperature was like 20 and the finishing temperature was like 14 ( example) so the temperature went down so it's endothermic


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    Fair enough, i didn't read the question properly, only 1/60 marks though
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    (Original post by berkin12)
    It was exothermic because they were looking at the temperature change and it was increasing right?! Because I put endo first but I realised it was exo
    It was endothermic. As they added more of the stuff the temperature change decreased.
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    (Original post by sammann123)
    Fair enough, i didn't read the question properly, only 1/60 marks though
    That 1 could be the difference between an A or A* overall!
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    (Original post by sammann123)
    Wasn't it exothermis because te temperature of the water increased?


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    What are you talking about it decreased
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    (Original post by anaypanda)
    So after seeing exothermic and endothermic, im beginning to feel that "heat energy" isnt quite right.

    Also, what did people put for the one about carbon dioxide being a gas, and did anyone relate the question back to mars? because ive heard some people that did and some people that didnt..
    No i didn't relate back to Mars... it didn't ask you too so what was the point?! I just kind of waffled on about how carbon dioxide is a compound- and comps are hard to seperate... bs basically and then i mentioned strong covalent bonds within carbon ...and guess what i threw in a bit about the collision theory too! I thought some of it had to be right :') lol!!
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    (Original post by Elm Tree)
    That 1 could be the difference between an A or A* overall!
    Yeah for b1 i came out thinking i lost 2 marks turned out i was 2 marks away from an A*
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    (Original post by LjWol)
    No i didn't relate back to Mars... it didn't ask you too so what was the point?! I just kind of waffled on about how carbon dioxide is a compound- and comps are hard to seperate... bs basically and then i mentioned strong covalent bonds within carbon ...and guess what i threw in a bit about the collision theory too! I thought some of i had to be right :') lol!!
    I said that carbon dioxide is a simple molucule so has weak intermolecular forces of attraction.
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    (Original post by Elm Tree)
    That 1 could be the difference between an A or A* overall!
    Well yes, but other than that it was a very easy paper and I can't think of any other marks i dropped
 
 
 
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