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  1. B

    how do you draw this circuit (phys paper 6)

    thank you very much :)
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    how do you draw this circuit (phys paper 6)

    thank you so much - very helpful!!!
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    how do you draw this circuit (phys paper 6)

    The three lamps are now connected in parallel with one another. Draw a circuit diagram of the three lamps connected to the power supply. Include in your circuit diagram (i) an ammeter to record the total current through the lamps, (ii) a variable resistor to vary the brightness of all three...
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    Amazing notes for physics paper 6!!

    Centre of mass experiment (with the lamina): How to minimize inaccuracy when marking the lines : you view the string directly in front of card. Why angle i is NOT equale to angle r in ray experiment: - thickness of pins -thickness of mirror -protractor is not precise In an experiment to do...
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    Meaning of 'within the limits of experimental accuracy'?

    Please can you guys explain this as it is found in nearly every mark scheme for physics paper 6!! Please be detailed as this not only helps me, but others too. Thank you. Also, what does 'make sure your points are within half a small square' for graphs? :)
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    Structural isomerism.

    so if its not from a text book, then where from? Thanks again ;)
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    To those of you who do not understand displacement of ammonia from its ammonium salts

    Ok, so today i'll be explaining this concept. So first off, i want you to imagine a lump of soil in front of you. Now, this soil has certain fertilisers in in that actually make it a little bit acidic. This is of course NOT good for the crops that are growing in it. So what do we do? Well...
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    Structural isomerism.

    no i mean like what text book do you use to know all of this? Because my text book doesn't go into all that detail :( I know this might be too much to ask (and if so you don't have to do it) but would it be possible if you scanned you're source (text book/notes) on structural isomerism? Or is...
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    Alkaline hydrolysis of esters - me explaining it to you guys!

    Oh yeh i'm so silly! aahaha i forgot that fats were esters! :P
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    Alkaline hydrolysis of esters - me explaining it to you guys!

    reflux is basically using the liebig condenser ( a type of condenser with water surrounding it to keep it cool) in the vertical position (usually a liebig condenser is used in the horizontal position). Heating under reflux means that you have a water bath under the liebig condenser, and in the...
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    Structural isomerism.

    Hi ok it seems like no one is contributing ahaha :/ But thanks for your help, may i ask, where do you get your info from? As in, how do you know this stuff? :)
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    Alkaline hydrolysis of esters - me explaining it to you guys!

    Hi, ok so i just revising chem paper 3, and thought, hey, i should write what i just learnt on here! So here is the explanation of the alkaline hydrolysis of esters! Is this on the syllabus? I don't know lol but its in my chemistry book so worth learning ;) Esters can be hydrolysed to an...
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    Structural isomerism.

    P oK, you're right, it is hard to write all of them as you must be studying too, so how about this: you write a little bit, anything that comes to mind about structural isomerism, and then others can add in things that you didn't mention, and then others can add things that that person...
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    Structural isomerism.

    hi everyone, This is a thread made for structural isomerism, as a lot of people don't quite undesrstand its concept. First off, we will start with explaining it and its concept, and after that, people can post problems to do with it. Ok, so i'll tell you my doubts about it, as they're general...
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    Physics, Chemistry and Biology: Post your doubts here!

    Hi everyone Please can you guys explain structural isomerism? First off, how do we draw an isomer as apparently there are different ways to do so (i think 2?) and also, how do we name them, because the steps for naming the isomer is different for each homologous series. For instance...
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