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yes man
Same here thats what made me think as well,i knew this diagram and what it is but its the weird name which just made us all curious
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yes man
lol i didnt name it
can anyone tell me what is the purpose of NPN transistor and potentiometer... bistable and astable circuits
I think ull be better of leaving this part its absolutely difficult to understand and most even the most renowned teachers leave this topic as it comes in optional as indicated in the syllabus so it will only be in option not in P4 or P1 either !
But if u still wanna understand then go ahead its kinda useless as u dont get it in Alevels this topic !
Just for making us go mad !yeah man its too hard i dont know why is this topic included in syllabus
the line/curve should pass through atleast 75% of the marked points. it should be a neat graph if not perfect.Whats the line/curve of best fit?
ok..thanksthe line/curve should pass through atleast 75% of the marked points. it should be a neat graph if not perfect.
ohh ohh. i thought copper can react with sulphuric acid. isnt this right???
http://in.answers.yahoo.com/question/index?qid=20100721014505AATIu4j
http://hyperphysics.phy-astr.gsu.edu/hbase/magnetic/motorac.htmlCan any one help me with D.C Motor and A.C Generator? I tried reading different books but don't seem to understand . Does any one here have any notes that could teach me this? Help will be appreciated.
AS fAR as i know ,I think all the metals below H in the reactivity series cannot react with dilute sulphuric acid( a point to be remembered) while there are chances that they can react with concentrated sulphuric acid!!can someone please explain this to me? we dont have a good chemistry teacher and he doesnt explain anything, so please cooperate.
Cu does not react with H2So4 because H2 is above Cu in reactivity series.... right?
So why does CuO react with H2SO4 and in what cases will metals below Hydrogen react with acids? should they be an oxide of the metal?
please if you can, explain fully.
can someone please explain this to me? we dont have a good chemistry teacher and he doesnt explain anything, so please cooperate.
Cu does not react with H2So4 because H2 is above Cu in reactivity series.... right?
So why does CuO react with H2SO4 and in what cases will metals below Hydrogen react with acids? should they be an oxide of the metal?
please if you can, explain fully.
AS fAR as i know ,I think all the metals below H in the reactivity series cannot react with dilute sulphuric acid( a point to be remembered) while there are chances that they can react with concentrated sulphuric acid!!
P.S the reaction u are talking about is a nuetralization reaction in which an acid reacts with an Alkali(CuO is a basic oxide or alkali) and as your question says "should they be an oxide of metal" this is not necessarily needed oxides act as acid or alkali in nuetralization reaction!!
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