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a find the balance reaction and the corresponding e for the oxidation of fe2 by dissolved oxygen o2b if water is in
how much heat is evolved in converting 100 mol of steam at 1550c to ice at -450c the heat capacity of steam is 201
show the products of the reactions of these carboxylic acid with pbr3br2 before and after hydrolysisa pentanoic acidb
the tension in the horizontal towrope pulling a water-skier is 270 n while the skier moves due west a distance of 52 m
during normal operation a computers hard disk spins at 7200 rpm if it takes the hard disk 45 s to reach this angular
your cars wheels are 69 cm in diameter and the wheels are spinning at an angular velocity of 105 rads how fast is your
calculate delta a of reaction and delta g of reaction for the reaction c6h6 l 152 o2 g --gt 6co2 g 3h2o l at 298 k
a car approaches the top of a hill that is shaped like a vertical circle with a radius of 492 m what is the fastest
a spacecraft is in orbit around a planet the radius of the orbit is 30 times the radius of the planet which is r 71467
1an air traffic controller spots two airplanes at the same altitude converging to point a as they fly at right angles
you are going to administer 201 81 ti to a patient in preparation for a stress test in a patient with possible
a proton and an electron are both accelerated through a potential difference of 7200va what is the kinetic energy in
a college professor keeps 025 l 000025 m3 of hot coffee in a thick styrofoam container the container is 06 cm thick and
let f be a differentiable function on an interval of the form a infin prove that if there is a number r not equal to
at launch the space shuttle weighs 45 million pounds 204 million kilograms as the vehicle starts from rest on the
prove that the upper sum uf p for a partition of a b and a bounded function f on a b is the least upper bound of the
the half-life of plutonium-239 is 24 110 yrs of an original mass of 100g how much plutonium-239 remains after 96 440
suppose that 00025 m3 of gas in a cylinder is compressed by a piston down to 0001 m3 while 675 j of heat flows out of
an ideal gas at stp originally occupying a volume of 0115 m3 expands isothermally until its pressure falls to 085 atma
barium sulfate can be made by mixing solutions containing the barium and sulfate ions the net ionic equation for this
fisherman has estimated that it takes 4 minutes to paint each square foot of the hull of his boat how much time should
wood and oxygen are two reagents required to keep a campfire burning identify the limiting and excess reagent a the
humans consume glucose c6h12o6 to produce engery the products of glucose consumption are co2 and
a metal conducting sphere of radius 15cm has a net charge of 30nc and is located with its center at the origin if v0 at
the total heat of hydrationof 1 mol of gas phase li ions and cl- ions is -865kj the lattice energy of licls is 828