Explain why the reaction among the peroxydisulphate ion
Explain why the reaction among the peroxydisulphate ion and iodide is slow and what type of reaction is this? Explain why.
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A light source moves in the direction of a receiver with speed v When the source emits light having a frequency f_0, determine the frequency of the received signals?
Briefly explain what chemical test will distinguish calcium chloride (CaCl2) from the calcium carbonate (CaCO3).
Determine the molarity of a solution of glycerol which is made by dissolving the 30.00 mL glycerol at 15degrees Celsius in the enough water to make 275.00 mL of solution.
Determine the centripetal accelerations at each of the given points due to the rotation of Earth about its axis. (i) The point on Equator of Earth (ii) The North Pole
The arm is outstretched having a mass of 4.2 kg. The hand at the end of arm holds a 6 kg mass. The arm is increased 15 degrees above the horizontal. i) Determine the torque about the shoulder due to the weights of the arm and 6 kg mass?
A normal breath takes in about 1.0L of air. Assume air has anaverage molar mass of 28.8 g and its density is .97g/mol. How many molecules of air do you take in each breath?]
An object of 2.7 kg is moving in a plane, having its x and y coordinates given by x = 3t^2 - 2 and y = 2t^3 + 2, where x and y are in meters and t is in seconds. Determine the magnitude of the total force acting on the object at t = 2.6 s.
Assume that on January 1, 1866, one of the ancestors invested $36 compounded annually at 5.5%. If the money were left to you, how much money you have had on January 1, 2012?
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