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a. How does vulcanization change the character of natural rubber?
b. Why are the numbers 66 and 6 put in the names of nylon-66 and nylon-6?
I have to write about the water treatment and the fda and epa and compare and contrast the rules and regulations for tap and bottled water and stuff. Can you help?
Q. Why we need Sulfuring? Sulfuring is the process which is used to destroy microorganisms and to preserve colour. Fruits after blanching may be dipped into a sulphite solution
Antiseptics doesn''t harm living cells whereas disinfectants harm living cells.and disinfectants are used to sterilize instruments and utensils but cant be used on skin....and the
The ratio of the energy of a photon of 2000Å wavelength radiation to that of 4000 Å radiation is: (1) 1/4 (2) 4 (3) 1/2 (4) 2 Ans
Basic dyes: These types of dyes are the hydrochlorides or zinc chloride salts of colour bases comprising basic group sets. These dyes act along with anionic sites available on
Q. Determine mass of an electron? Ans. Three years later after J.J Thomson discovered the electron, the American scientist Robert Millikan used an oil drop experiment to accu
I have the following reactions (1)NaOH+CO2+M=NaHCO3+M, K1 (2)NaHCO3+H=Na+H2CO3, K2 (3)2NaHCO3+M=(NaHCO3)2+M, K3 ki''s are the rate constants. Suppose NaHCO3 is a dominating constit
It gives Meta Bromo Benzoic acid.
Ethelene+diaminotetraacetate---->1,4- diaminobutane from ethylene CH 2 =CH 2 +EDTA---->NH 2 -CH 2 -CH 2 -CH 2 -CH 2 -NH 2
Energy of orbit: (1) Increases as we move away from nucleus (2) Decreases as we move away from nucleus (3) Remains same as we move away from nucleus (4)None of the
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