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Hydrazine, N2H4, reacts exothermically with hydrogen peroxide, H2O2, to produce gaseous nitric acid and water vapour. What would a balanced equation for this reaction be?
What is meant by the term Valence
The electronic configuration of a dipositive metal M 2+ is 2, 8, 14 and its atomic weight is 56 a.m.u. The number of neutrons in its nuclei would be: (1) 30 (2)32
Why the rate of ketone halogenation is independent Because the rate of ketone halogenation is independent of the halogen concentration, the rates of halogenation of the same ke
what is heat of reaction
According to Heisenberg's uncertainty principle, the product of uncertainties in position and velocities for an electron of mass 9.1x 10 -31 kg is: (1) 2.8x 10 -3 m 2 -s -1
Ratio of radii of second and first Bohr orbits of H atom: (1) 2 (2) 4 (3) 3 (4) 5 Ans: 4
Which type of compounds show high melting and boiling points: (1) Electrovalent compounds (2) Covalent compounds (3) Coordinate compounds (4) All the three types of co
Blending is an important unit operation in the chemical and process industries. It is employed in a wide variety of industries including the production of cement and gasoline. C
A 64-g sample of germanium-66 is left undisturbed for 12.5 hours. At the end of that period, only 2.0 g remain. What is the half-life of this material? 4. With a half-life of 28.8
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