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During a flame test why is calcium''s flame not persistent, while that of strontium is?
Ans) Because it does not have many ions as compared to the Strontium. It is the ions which produce color.
Upward and downward pressure are the same at any given depth Get a glass cylinder at least 15 cm long and 4 cm in diameter. Such a length of tube can be made from a straight-si
ENTROPY Entropy is a thermodynamic property of a system. It is denoted as S and like as the enthalpy and internal energy, it is a state function. In thermodynamic expression, e
Explain about the Impact extrusion Blank is placed over the die and pressed by punch. Metal is squirted upward round the punch. Thickness of the part is fixed by the gap bet
Polynuclear benzenoid hydrocarbons are provided to be carcinogenic that means cancer producing.There are liberated by incomplete combusion of certain substances like tobacoo,coal p
Electron enters the sub-shell for which (n+l) value is minimum. This is enunciated as: (1) Hund's rule (2) Aufbau principle (3) Heisenberg uncertainty principle (4) P
n-propyl acetate (bp 102 C) evaporates rapidly when exposed to air, but water(bp 100C)does not. Explain why
What is the effect of the various concentrations of aniline hydrochloride on the ph and the X value, and what''s the logic behind all this
WHAT are the properties of group13 elements?
what are the different types of colloidal system?
Osmotic pressure: Osmosis process is the movement of a solvent from a solution of lower solute concentration (higher solvent concentration) to one of the higher solute concentr
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