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define term hardness,explain units of hardness
The set of quantum numbers not applicable for an electron in an atom is: (1) n= 1, l=1, m 1 = 1, m s = +1/2 (2) n= 1, l=0, m 1 = 0, m s = +1/2 (3) n= 1, l=0 m
Consider a process for the partial oxidation of benzene to produce maleic anhydride (C 4 H 4 O 4 ) using air. There are two reactions to be concerned with: The first partially oxid
calculate the enthalpy of combustion for acetic acid using standard enthalpies of formation.
Q. What is structural formula and how to write it? Ans. To represent an organic molecule, a structural formula is often used. As a structural formula shows how the atoms i
The ionisation potential of a hydrogen atom is -13.6 eV. What will be the energy of the atom corresponding to n= 2 . (1) -3.4 eV (2)-6.8 eV (3) -1.7 eV
1.why hardness Bore water less than sea water?
What are the major poisnous gases released during burning of the plastic substances????? Ans) It is high time that we start taking concrete steps in order to prevent pollution or
iupac naming of ten bridged ligand containg complexes with their formulas
classification of lubricants
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