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Between a proton and electron in a hydrogen atom = 3.16 x 1047 A0
A copper tube 1 inch in diameter and 2 feet long is filled with steel balls of 1 inch diameter. The space between the balls is filled with water. The specific gravity of steel is 7
why is the valence electron 4s2 in the elelment Sc21 and not 3d1?
common properties
In Heisenberg's uncertainty equation Δ x ×Δ p ≥ h/ 4 Π ; stands for: (1) Uncertainty in energy (2) Uncertainty in velocity (3) Uncertainty in momentum (4) Uncert
Q)why is the extraction of copper from pyrites more difficult than that from its oxide ore through reduction? Ans) The Standard free energy of formation of Cu2S is greater than
how can be synthesise active methylene group contining compound
the increasing order(lower first) for the values of e/m (charge/mass) for e,p,n,a?
the diagnal relationship in periodic table
A Galvanic cell or voltaic cell or electrochemical cell is a system in which a spontaneous chemical oxidation- reduction happens and makes electrical energy.
How to determine the hybridization of a complex compound in a easy way? Generally d-block elements have tendency to form coordination compounds. from at. no. 21 .i.e scandi
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