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The density of pure silver is 10.5 g/cm^3 at 20C. If 5.25g of pure silver pellets is added to a graduated cylinder containing 11.2 mL of water, to what volume level will the water
Chloramphenicol: It is a extensive spectrum antibiotic. It was very firstly isolated from a class of streptomyces. It has been made up synthetically on business basis. It is gr
Comment on the validity of the following statements, giving reasons: (a) Thermodynamically an exothermic reaction is sometimes not spontaneous. (b) The entropy of steam is mo
#uestion.. what is difference between acetaldehyde and ketone
Use the VSEPR model to predict approximate molecular geometries and electron-domain for the following species. (a) XeF 2 , (b) NH3Cl + , (c) BrO2 -
How do impurities and temperature affect electrical resistivity of metals? Ans: Temperature effect on resistivity: Any increase in temperature of a conductor increase
Silver mirror test and Fehling's solution test - Glucose (a) Silver mirror test : A combination of glucose and ammonical silver nitrate is warmed in a test tube. Presence of si
Explain the following observations: (i) Generally there is an increase in density of elements from titanium (Z = 22) to copper (z =29) in the first series of transition element
write the different units of hardness with their relationship
which element is the largest size halogen.
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