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    Is it possible to do 4 unit maths by yourself?

    Hi all , please help me with advise, I am currently in year 11, and I have already started 4 unit course. I like maths, I am doing pretty good. But the problem is the teacher, who has never taught Extension 2 , even extension 1, and he doesn't explain good, he relies on us to understand the...
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    Very Urgent Help Please. Calculate the enthalpy of unknown substance!!

    Please help me with this question... The mass of unknown substance is 4 grams The mass of water is 100 grams C is constant and equals 4 J/(K g) The temperature changes from 17 degrees to 20 degrees So how to work our the enthalpy of an unknown substance, and by comparing with accepted value...
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    Preliminary experiments HELP, please!!!

    Hi everyone!!! I am working on my syllabuses , and there are many experiments on 'Water' topic, that we havent demonstrated AT ALL!!! I am really worried, as there is no time left:bomb: So could u please give me some links, websites, ideas , or write ur methods and results of mandatory pracs...
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    What are the related text that u have done for the topic "Belonging"?

    Please give me ideas what related texts can I choose for the topic "Belonging"!!! Thanks a lot:wave:
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