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The Bohr orbit radius for the hydrogen atom (n=1) is approximately 0.530 Å . The radius for the first excited state (n=2) orbit is: (1) 0.13Å
what is the equivalent weight of Ca in Ca3(PO4)2?
Why magnesium does not impart any colour to Bunsen flame while calcium does
how to balance chemical eqations
From the following which group of elements easily forms cation: (1) F, CL, Br (2) Li, Na, K (3) O, S, Se, (4)
Tempering is a heat treatment method for metals and alloys. In steels, tempering is completed to "toughen" the metal by transforming brittle marten site into bainite or a combinat
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How does crystallography help in study of crystal structure
Chemical methods - Purification of organic compounds Besides these physical methods, few chemical methods have as well been utilized to separate a mixture of organic compounds.
Name the chemical components which constitute nucleotides. Write any two functions of nucleotides in a cell.
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