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The covalency of nitrogen in HNO3 is:
(1) 0
(2) 3
(3) 4
(4) 5
Ans: 5
what is the relevance of half filled and completely filled orbitals in ionisation enthalphy ditermination
assignment
Oxidation no of fe in fe2o3
When heated calcium hydroxide as well as ammonium chloride reacts to produce water vapor ammonia gas and solid calcium chloride. Presume 5.00g of calcium hydroxide as well as 10.00
what groups comprise each block of elements(s,p.d and f blocks)in the periodic table
#space lattice, unit cell, calculation of particles per unit cell, laws of crystallography, symmetry elements in crystals, derivation of braggs equation#
Rubber - polymer It is a polymer that is able of returning to its original size, shape or length later than being deformed or stretched. It a kind of elastomer. Rubber is of tw
Uses of plaster of paris
Penta valent element has one electron more than 4 electrons which could be used for conduction while the trivalent elements has 1 electron less , this can also be seen as a hole
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