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an ionic compound forms when calcium z 20 reacts with iodine z 53 if a sample of the compound contains 129x1019
the decomposition of h2o2 is a first order reaction consider h2o2 has its initial concentration as 232m what will be
the reaction in eq 1 is zero order with a rate constant of k05 mol l-1 s-1 assuming that the initial concentration of a
calculate the volumes of distilled water and 28ppt seawater which must be mixed to yield 1 liter of 18ppt
can anyone tell me how is made sigmalike as primary bond and pilike as secondarybondin oxygeno2moleculehow are joined
consider two different solutions of the same uv-absorbing compound upon uv-analysis solution b gave an absorbance of 15
the melting point of a newly discovered element is 19354degf express this temperature in degrees
a baseball player decides to keep going past second base and try for third base the 62 kg player begins sliding 340 rm
show the change in oxidation number give number of electrons gained or lost per atom eg 3e- gained in the following
butanol and chlorobenzene form a minimum-boiling azeotropic system the mole fraction of 1-butanol in the liquid x and
your friends 00185 kg graduation tassel hangs on a string from his rearview mirror when he accelerates from a stoplight
the camera is 450 m in front of the mirror the bird is at camera level 689 m to your right and 412 m from the mirror
a student carried out the standardizatoin of a potassium permanganate solution using the procedure described in this
a respiration monitor has a flexible loop of copper wire which wraps about the chest as the wearer breathes the radius
we titrated kmno4 into oxalic acid dihydrate now by using the mass of substance and volume ect i found the number of
if temperature and pressure remain constant how does the volume of a gas sample vary withthe number of moles of gas
a wedding ring of diameter 199 cm is tossed into the air and given a spin resulting in an angular velocity of 23
two light sources are used in a photoelectric experiment to determine the work function for a particular metal surface
the conductivity of a solution can be measured easily with a probe that dips into a solution and a meter that reads out
electrons are ejected from a metallic surface with speeds ranging up to 45 105 ms when light with a wavelength of 625
the density of air under ordinary conditions at 25 c is 119gl how many kilograms of air are in a room that measures
an object of mass 661 kg is released from rest and drops 190 m to the floor the collision is completely inelastic how
the reaction of bromine with acetone follows first order kinetics ie where k is the rate constant c is the
a 165 kg mass is placed on the end of a spring that has a spring constant of 195 nm the mass-spring system rests on a
a 400 g sample of solid ammonium carbonate is placed in a closed evacuated 300 l flask and heated to 400 degrees c it