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The expression for Bohr's radius of an atom is: (1) r= n 2 h 2 / 4 Π 2 me 4 z 2 (2) r= n 2 h 2 / 4 Π me 2 z 2 (3) r= n2h2/4 Π me 3
Name the chief ore of silver. Explain with chemical equations the extraction of silver from this ore.
lithium and beryllium markedly differ from other members of their respective groups.
A hydrocarbon z with molecular mass 78 on combustion gave 3.384g of carbon (IV) oxide and 0.693g of water. Determine the molecular formula of Z and draw its structure. [H=1, C=12,
Magnesium is the lightest of the structural metals. While this low density is an attractive property, magnesium also has a high corrosion rate that has often been seen as a disadva
Which is a better coolant, Freon 11 or Freon 12? why?
scales and sludges
#questio1. Alcohols and amines are both nucleophilic. Explain why this reaction occurs to form Benadryl (diphenhydramine)n..
advantages and disadvantages of coulometer
Anomalous behavior of Fe
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