atoms, Chemistry

the periodic table
Posted Date: 1/6/2013 5:42:11 AM | Location : United Kingdom







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The atomic weight is the weight of an atom of a chemical element.  For instance, the atomic weight of oxygen is 15.9994 and the atomic weight of hydrogen is 1.0079.  Write a script

what is atom


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Which one of the following groupings represents a collection of isoelectronic species: (1) NA +, Ca 2+ , Mg 2+        (2)  N3, F - , Na + (3)  be, Al 3+ , Cl -

explain reaction and procedure of rosenmund reaction for preparation of benzaldehyde

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The amino acid glutamine can be produced bythe following equilibrium in the presence of a suitable catalyst.  The equilibrium constant for this reaction is 3.5 x 10-3 at 25 oC.

what are the properties of d-block elements?

Preparation of dihydric alcohols