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According to this theory, the impure iron surface behaves like a small electrochemical cell presence of water containing dissolved oxygen or carbon dioxide. Such a cell is also cal
The number of electrons in [ 40 19 k ] -1 is: (1) 19 (2) 20 (3)18 (4)40 Ans: 40
Alkaline earth metals: The elements Be, Mg, Ca, Sr, Ba and Ra belong to II A group. 2. II A group elements are also called alkaline earth metals. 3. The valence electron
The total number of orbitals in an energy level designated by principal quantum number n is equal to: (1) 2n (2) 2n 2 (3) n
anomalous behaviour of beryllium
Q. What is Spontaneous processes? Ans. Spontaneous processes are events which occur without any assistance. When an object is held above the floor, it falls when released. Ic
What is it?
mention the basic tendency of an atom which makes it to combine with other atoms.
zinc+copper(ll) chloride
How can the enthalpy of the hydrogenation of benzene be measured from its enthalpy of combustion and the enthalpies of combustion of cyclohexane and hydrogen? Make use of Hess's la
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