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we performed an extraction using benzoic acid 2-naphthol and 14-dimethoxybenzene what is the chemical reaction for the
the isotope 218 84 po 218008965 u can decay by eitheralpha or beta emission what is the energy release in each
an electron moves with a velocity of 4106 ms 90degrees through a magnetic field of 050 t 220degrees what is the
a very large non conducting plate lying inthe xy-plane carries a charge per unit areaof 6sigma a second such plate
monochromatic light falls on two verynarrow slits 0048mm apart successive fringes on a screen500m away are 65cm apart
the combustion of sodium has a change in heat for the balanced reaction of -832 kj do you need a balance reaction to
in an experiment 210 g of aluminumwith a specific heat of 900 jkgk at 100degc ismixed with 560 g of water 4186jkgk
two wires are parallel heading north-south the current in each wire is northward what is the direction of the magnetic
if the titration of 08094g of 100 pure kph requires 4025ml of naoh what is the concentration of the naoh
a straight wire rests on a level surface and is oriented along the east-west axis a compass is placed above the wire
the decomposition of sulfuryl chloride so2cl2 is a first order process the rate constant for the decomposition reaction
each second the fuel burning in an electric power plant produces 1000 mj of heat energy at a temperature of 527ordmc
two coils have a combined resistance of 9omega when connected in series and 2 omega when connectedin parallel find the
an ice cube of mass of 10 g is taken from the freezer at-10ordmc and placed into 200 ml of water in a 100-g
a metal cube of edge 2 cm is drawn into auniform wire of length 2 m then the wire is cut into 3 pieces ofequal length
an oak barrel with a lid of area 020 m2 is filled with water a long thin tube of cross-sectional area 50 x 10-5 m2 is
a ball is dropped from rest from the top of a building and hits the ground with a speed of v from ground level a second
an astronauts life to to her ship comes loose ans she finds herself stranded at 100m from the ship the astronaut throws
a fine metal foil separates one end of two pieces of opticallyflat glass when light of wavelength 670 nm is incident
electrons mass m charge -e are accelerated from restthrough a petential difference v and are then deflected by
which of these bases is the strongest one which can be used in aq solution and retain its basic
a charge of -245 nc and acharge of -565 nc are separatedby a distance of 700 cm find the position at which a third
nitrogen dioxide no2 cannot be contained in a pure form in the gas phase because it exists as mixture of no2 and n2o4
a find the energy of the electron in the ground state oftriply ionized beryllium which has an atomic number z 4evb find
list in chronological order a major contribution of each of these scientists to the understanding of the atom dalton