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			A mixture of FeO and Fe3O4 when heated in air to constant weight gains 5% in its weight .The % of FeO in the sample is? ... 
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			A car traveling at 22.4m/s skids to a stop in 2.55s. Determine the skidding distance of the car (assume uniform acceleration). ... 
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			Which one of the following has variable valency? A. Chlorine B. Sulphur C. Iron D. Sodium Your answer : B Correct answer : C Why? ... 
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			surrounding groups affect the energy of some of d orbital more than the others. thus, the d orbtals are no longer degenerate- why should surrounding groups affect the energy of some d orbital more than the others when they r  ...