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how do you find mass of chlorine in sample (by difference)
Why magnesium does not impart any colour to Bunsen flame while calcium does
The correct sequence of increasing covalent character is represented by: (1) LiCl 2 (2) BaCl 2 (3) NaCl 2
No. of valence orbitals- No of Hybrid orbitals.Apply the formula for no. of hybrid orbitals.If it exceeds 4 then the answer is 0.
Energy of the electron in Hydrogen atom is given by: (1) E n = 131.38/ n 2 x kj mol -1 (2) E n = 131.33/n xkj mol -1 (3) E n = 1313.3/ n 2 x kj mol
Chemical in cosmetics The phrase cosmetics are taken from the Greek word Kosmetikos. The meaning of this is decorating. Beautifying or enhancing complexion of skin. In middle a
give exsample on how undesired wavelengths are blocked and desired one is trans mitted
The mole fraction of solute and solvent is equal to
Caculate the amount of heat energy needed to raise the temp. Of the water in a 40 gal (151-kg) home water heater from 19.o celcius (66.2 f) to 60.00 C (140.f
In Bohr series of lines of hydrogen spectrum, the third line from the red end corresponds to which one of the following inter-orbit jumps of the electron for Bohr orbits in an atom
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