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How many unpaired electrons are present in cobalt [Co] metal:
(1) 2
(2) 3
(3) 4
(4) 7
Ans: 3
difference between atom,element,compound,molecule,ion,charge
percentage concentration of 18-k gold bracelet, 150 grams
The free energy change for the formation of oxide of aluminium is highly negative ( -1000 to -1100) so , it can easily reduce any metal oxide abve it easily in ellingham diamgram a
what is inert paired effect? Explain with examles
shortnotes
what are grignard reagants ? how are tthey prepared is laboratory ? what makes them so important in synthetic chemistry?
According to heisenberg uncertainty principle: (1) E=mc 2 (2) Δ x × Δp ≥ h/ 4 Π (3)γ = h/ p (4) Δ x × Δ = h / 6 Π Norma
list down all the chemical properties of s- block?
two equivalent - one equivalent
An aqueous solution has a hydroxyl concentration of 1.75 x 10^-7mol/L. Find the concentration of hydrogen ions in this solution.
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