Periodic Table, Chemistry

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Basics of Periodic Table.

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Determine total energy of the electrons of hydrogen atom, The ratio between...

The ratio between kinetic energy and the total energy of the electrons of hydrogen atom according to Bohr's model is: (1) 2 : 1  (2)1 : 1      (3)1 : - 1           (4)

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The energy of electron in hydrogen atom in its grounds state is -13.6 eV. The energy of the level corresponding to the quantum number equal to 5 is: (1) -0.54 eV         (2)

Equilibrium calculations, One mole of gas A decomposed exothermically into ...

One mole of gas A decomposed exothermically into one mole of gas B and one mole of gas C with Kp = 1.8 x 10-5 at 300 K. If the initial pressure of each gas was 0.150 atm, what were

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How to synthesize xylene? How many methods(ways) to synthesize xylene?

Important synthetic rubbers: polyethylene, Polyethylene: Polyethylene are ...

Polyethylene: Polyethylene are formed by polymerization of ethylene under high pressure and at moderately high temperature. The resulting polymers are then subjected to substituti

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Show anomalous behaviour of oxygen, Q. Show Anomalous Behaviour of Oxygen? ...

Q. Show Anomalous Behaviour of Oxygen? Oxygen differs considerably from the rest of the family members. Small size, very high electronegativity and non-availability of d-orbita

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