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q1 what is valency of an elementq2 what is the valency of cl in hclq3 what is the valency of nitrate radical in nitric
more line broadening figure 62 shows data from measurements of the homogeneous line width of the d1 6p2 p12 --gt 6s2
1two converging lenses with focal lengths of 40cm and 20cm are placed 10cm apart a 2cm tall object is 15cm from the
a copper vat is 44m long at 20 degrees celcius how long will it be when filled at boiling water at one atmosphere of
q1what are diatomic moleculesq2what are homonuclear or heteronuclear diatomic moleculesq3name the gases that form
a bi-color led alternates so that the color red emits at 60hz and the color green emits at 60 hz so that visually it
completely polarized light is passed through a polarizing sheetthe light that passes though has an intensity of 50 of
procedure 11 take a constant temperature bath from the tools shelf and place it on the workbench2 open the properties
two 10m-hz radio antennas emitting in-phase are separated by 600m along a north-south line a radio receiver placed 20
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a tank of volume 05 m3 contains oxygen at a pressure of 15e6 pa and a temperature of 20 c assume that the oxygen
in figure calculate the x-ray intensity as a function of the incident intensity io that reaches the film for each of
a block of wood that is 3 inches wide x 6 inches long x 380 inches thick is fixedanchored to a structurethe top surface
a ten-year exposure to the sound of a riveting machine will cause your threshhold of hearing to shift from 0 db to 30
1 under which temperature conditions will the following reaction be spontaneousaaqbaq csdaq deltahdeg-340kjmoldeltasdeg
identify and explain the effect of the water supply on the development of cholera in developing countries report should
lab report discussiondiscuss on your observation of direct and indirect staining samples 2 sample i with crystal violet
a you have a large triangular prism made of silica ns 145 resting on a table the internal angles of the triangle are
you have 5l of a 003 m bicarbonate solution1 what is the mass of the bicarbonate in this solution2nbsphow much water do
identify whether the following are structural isomers stereoisomers or not an
1 an oil film on water appears brightest at the outer regions where it is thinnest from this information what can you
1 you are examining the light spectrum from a hot galactic gas from the frequencies in the spectrum you conclude that