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Science

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1041 to 1060 of 6599

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Sachin114
If there are only sigma bonds then the lone apir would stick to one atom and so it would be considered while calculatin the steric number. but why does it become delocalized around a pi bond...
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Sachin114
the formula goes like this DOU = (c+1)-[h+x-n]/2, where c is the no. of carbon atoms, h is hydrogen, x is halogens like F, Cl, Br, I and n is Nitrogen... they have neglected oxygen and sulpher on the...
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Sachin114
we know that speed = distance / time and acceleration = speed / time... then putting acc as 9.81 and time as 1.7 and solving for distance we get 28.3509 instead of 14.17... where is the mistake? Thank...
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Double93
I have to do a table of the route oxygen takes in the respiratory system and write a brief note on how each of these components of the respiratory system is affected (or not) by COPD plus the impact...
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Sachin114
Is there an ultimate test which could differentiate an organic compund from an inrganic one?
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Sachin114
I was studying VSEPR theory, there i got this doubt. Also for BF3, PCl5, SF4, ClF3 and XeF2. The last four have more than 8 electrons... pls guide me... thank you...
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Sachin114
i mean it bonds even though its octet is complete. What is the need for the donor atom to get involved in the bond....thank you
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Sachin114
in my book in every table there is a column for no. of sig bonds between sp2 carbon and sp2 carbon atoms. but they are not using these figures for any calculation. nor are they signifying the...
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Sachin114
I got this doubt while reading a book on calculus by lv torosov. If you want then i could mail you the pdf copy and the page number...
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Sachin114
i have searched a lot but everywhere i find 0,1 or 2 lone pairs. So is there any reason behind it??? thank you...
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Sachin114
I was wondering about how Unique is carbon in making long chains . And weather long chains could be formed by using other non carbonn elements...
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Sachin114
I got this doubt while reading a book on calculus by lv torasov. If you need i can mail you the pdf and the page number... again Y= x^2, 0...
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Sachin114
If possible the give two answers. First, from inorganic chemistry. Second from organic chemistry.
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strabismus
I don't think 1.5 represents a rational number. It stands for any real number between 1.45 and 1.549999999 expressed to 2 significant figures. It does not have the same meaning as 3/2.
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EDDIE51
From tonight and until 12th June Mars will be at it's closest to Earth for over 11 years. Get the telescopes out! http://www.universetoday.com/129210/mars-closest-point-earth-11-years-today/...
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Rev. Green
If you hold the ends of an axle with each hand then turn the axle through 180 degrees so that your left hand holds the end that the right hand held, how will a bicycle wheel previously free-wheeling...
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Sachin114
In simple intuitve terms what is the meaning of diffusion cofficient in Ficks law? pls give some good analogy if possible...
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Sachin114
i just want a very crude and general idea. It would be very useful if you can give some good analogy?
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Sachin114
i mean what isthe reason because of which the neutron or proton decays... Chemical reaction happen to achieve stable electronic configuration similar to nearest inert gas. That happens by exchange or...

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