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GROUP 2: ALKALINE EARTHS The elements known commonly as alkaline earths have atoms with the (ns) 2 design and almost always have the +2 oxidation state in their compound
copper reacts with oxygen to form two oxide X and Y .On analysis 1.535g of X yielded 1.365g of copper and 1.450g of Y yielded 1.160g of copper. [I] determine the chemical formula
what is coulometry
preparation of iodoform
The electronic structure of four elements A, B, C, D are: (1) 1s 2 (2) 1s 2 , 2s 2, 2p 2 , (3) 1s 2, 2s 2 , 2p 5 ,
Calculating equilibrium constant
Energy of atomic orbitals in a particular shell is in the order: (1) s (2) s> p > d > f (3) p (4) f > d > s >p Ans: s
Can you help me find the potential difference between different metals in the electrochemical series? For example magnesium and copper? Do I need to write equations?
The configuration 1s 2 2s 2 2p 5 3s 1 shows: (1) Ground state of fluorine atom (2) Excited state of fluorine atom (3) Excited state of neon atom (4) Excited state
A red flame is produced when LiCl is heated. How can I determine which transition between the energy levels produces this colour?
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