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Why do zinc hydroxide, aluminium hydroxide and lead (II) hydroxide dissolve in excess aqueous sodium hydroxide?
polonium crystallizes in a simple cubic unit cell with an edge length of 3.36A. 1. what is the volume of the unit cell? 2. what is the volume of atom in the unit cell? 3. what i
Simultaneous determination of exact position and momentum of an electron is: (1) Possible (2) Impossible (3) Sometimes possible sometimes impossible (4) None of the ab
how we can mix solids by usig silica gel?
explain Berzelius hypothesis and contradiction of daltons hypothesis with an example
Electron enters the sub-shell for which (n+l) value is minimum. This is enunciated as: (1) Hund's rule (2) Aufbau principle (3) Heisenberg uncertainty principle (4) P
what is oxidation?
how many times does water need to be magnified to see the atoms
calculate the voltage of the cell mg/mg+//cd2+/cd at 250c.when[cd2+]=7*10-11 M,[mg2+]=1.0M and standerd electrode potential=1.97V.
The sulphate of a metal has the formula M 2 (SO 4 ) 3 . The formula for its phosphate will be: (1) M(HPO 4 ) 2 (2) M 3 (PO
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