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Define Electric Potentials in the Cell? The electric potential - at a point in space is de?ned as the change in the electrical potential energy of an in?nitesimal test charge w
The nucleus of an atom can be assumed to be spherical. The radius of the nucleus of mass number 7 is given by 1.25x 10 -13 A 1/3 cm Radius of atom is one A. If the mass number
explain the law of chemical combination
convert km to m
preparation of iodoform
Chemical Properties of Ethers Ethers are fairly stable compounds. These are not simply reacted along with alkalies, dilute mineral acids, active metals, oxidising agents within
Write a reaction for which the enthalpy change will be (delta H) for solid aluminum oxide.
D BLOCK ELIMENT
Hydrogen Peroxide Hydrogen peroxide is the other important hydride of oxygen. The oldest method of its preparation is by the action of dilute sulphuric acid on barium peroxide
Which one of the following groupings represents a collection of isoelectronic species: (1) NA +, Ca 2+ , Mg 2+ (2) N3, F - , Na + (3) be, Al 3+ , Cl -
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