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Calculate how much heat energy is required to raise the temperature of a cube of copper of side 2cm. from 300 to 320k. given: density=8933kg/m cube , atomic weight=63.55, cp=24j/k/
Describe the following observations: a. Lyophilic colloid is more stable than Lyophobic colloid. b. Coagulation takes place when sodium chloride solution is added to a collo
Describe discovery of sub atomic particles
Nitric oxide becomes brown when released into the air
A sample of gas occupies 10l under a pressure of 1atm. what will be its volume if the pressure is increased to 2atm ? assuming that temperature of the gas sample does not change
some simple live chemistry projects
What is the packet of energy called: (1) Electron (2) Photon (3) Positron (4)Proton Ans: Photon
Ask questiwhat is cryoscopyon?
2. Oxalic acid is a diprotic acid with the following deprotonation equilibria. A. You have 150 ml of a solution of pure oxalic acid with an unknown concentration.
Correct statement is: (1) K=4s 1 , Cr= 3d 4 4s 2 , Cu= 3d 10 4s 2 (2) K=4s 2, Cr= 3d 4 4s 2 , Cu= 3d 10 4s 2 (3) K=4s 2 Cr= 3d 5 4s 1 , Cu= 3d 10
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