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Calculate the force constant of CF4 and SiF4 and compare their relative strengths with each other.
The heats of formation of CF4 and SiF4 are -1222 kJmol-1 and -1615 kJmol-1.
1. why YbS and YbI2 are semiconducting solids but LaS and LaI2 show metallic character. 2. Why is aqueous solution of Eu2+ thermodynamically less susceptible to oxidation than any
Q. Classification of Organic Compounds?Groups of Organic Compounds? Ans. Organic compounds are classified on the basis of their functional groups. The common groups of org
explain Berzelius hypothesis and contradiction of daltons hypothesis with an example
Bond-line Notation of organic compounds Occasionally, the bonds in between carbon atoms are denoted by lines. For instance, n -hexane has a continuous chain of six carbon atom
#most wanted question..
in borontriiodide distance between two I atoms is found to be 3.54. if radius of covalent bonded I atom is 1.33. what is covalent radius of boron
Alum is a chemical (aluminum potassium sulphate) it tends to be whitish powder with various uses.
Explain relative electronegativities An analysis of relative electronegativities would suggest that, because C is slightly more electronegative than H, a important amount of th
DISCOVERY OF SUB-ATOMIC PARTICLES The atomic theory of the Greek philosophers, Leucippus and Democretus (400 B.C.) held that continued subdivision of matter would ultimately yi
The difference in the mass of 100 moles of sodium atoms and sodium ions is 5.48002grams .compute the mass of an electron
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