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A reaction has a rate constant of 1.22x10^-4 /s at 28 C and 0.230 /s at 75.0 C. 1. Determine the activation barrier for the reaction in kj/mol. 2. What is the value of the rate co
How many unpaired electrons are present in Ni 2+ cation (atomic number = 28): (1) 0 (2) 2 (3) 4 (4) 6 Ans: 2
I need to find the balanced formula for calcium hydroxide + potassium carbonatequestion..
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Explain the process of Grading and Sieving Grading: Grading consists of separating the sound kernels from chaff and impurities,and may be achieved by sieving or winnowing.
is relation a=2r+ + 2r- correct for bcc
Why is the total energy of a many-electron atom not equivalent to the sum of the orbital energies for every electron?
For n= 3 energy level, the number of possible orbitals (all kinds) are: (1) 1 (2) 3 (3) 4 (4) 9 Ans: 9
hydrogen behave as a metal at low pressure only why
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