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determine the amount of heat evolved in the combustion of 1 mol of methane gas to carbon dioxide and water liquid
a flat coil of wire consisting of 20 turns each with an area of 50 cm2 is positioned perpendicularly to a uniform
how many unpaired electrons can coii possibly have in a tetrahedral octahedral and square planar
negative ions might be expected to create stronger ligand fields than neutral molecules on the basis of the pure
a boy on the edge of a vertical cliff 20 m high throws a stonehorizontally outward with a speed of 20 ms it strikes the
a rope is used to pull a 357 kg block at constant speed526 m along a horizontal floor the forceon the block from the
a compound contains 2371 o 2376 s 5247 cl if it takes 46 seconds for this compound to effuse through the same plug
a 100 kg rocket is fired vertically its fuel gives ita kinetic energy of 1960j what additional height will the rocket
calculate energy emitted by an electron in the 8th energylevel relaxing to the 2nd enegy le el in a be 3 ion calculate
a pendulum bob of mass 05 kg is suspended by ahorizontal string of length 1 m and let go it collides elastically with a
proteins are least soluble and often precipitate when the ph of the solution equals their pi this property may be used
potassium sulfate solution reacts with barium bromide solution to produce a precipitate of barium sulfate and a
a spacecraft moving away from earth emits a 4327 hz signal a scientist on earth measures thesignal to be 4323 hz what
you add 1000 g of water at 60 degrees celsius to 100 g of ice at 0 degrees celsius some of the ice melts and cools the
a 30-kg child rides on a circus ferriswheel that takes her around a vertical circular path with a radiusof 20 m every
to make a bounce pass a player throws a 060 kg basketball toward the floor the ball hits the floor with a speed of 65
hemoglobin the red blood protein responsible for oxygen transport binds about 134cm3 of oxygen per gram normal blood
in 111 s 205 bullets strike and embed themselves in a wall the bullets strike the wall perpendicularly each bullet has
the titration of 250 ml of an unknown concentration h2so4 solution require 836 ml of 12 m lioh solution what is the
reaction pathway and balanced reaction between xenontetra flourideand water to give xenon trioxide and xenon in 12
a child pulls a 5kg toboggan with a 150n force 35 degrees above the horizontal 5m how much work was done in moving the
the question isa glass jar is filled with saturated water at 500 kpa quality 25 and a tight lid is put on now it is
what are the color spectrums for cabbagejuice and grape juice which one is a better
a worker pushes a 1500n crate with a horizontal force of 345na distance of 24 meters assume the coefficient of kinetic
what is the cell potential for a cell constructed by immersing a strip of manganese in a 100 m mnso4 solution and a