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The gas constant, also known as the universal, usually denoted by symbol R is a physical constant which is featured in a large number of fundamental equations in the physical scien
chemistry project on p block elements
(a) Co-ordination compound A co-ordination compound contains a central metal atom or cation which is surrounded by a suitable number of anions or neutral molecules and usually re
what is enthalpy
explain why Cu2+ ion is not stable in aqueous solution?
Why using factor 24.52 in Alcoholic Acidity
The number of electrons and neutrons of an element is 18 and 20 respectively. Its mass number is: (1) 17 (2) 37 (3)2 (4)38 Ans: 17
An aqueous solution has a hydroxyl concentration of 1.75 x 10^-7mol/L. Find the concentration of hydrogen ions in this solution.
Ask question #Minimum 100 words acceWhen an electron beam strikes a block of copper, x-rays of frequency 1.07 x 10 19 Hz are emitted. What is the wavelength of these x-rays?pted#
The positive charge of an atom is: (1) Spread all over the atom (2) Distributed around the nucleus (3)Concentrated at the nucleus (4) All of these Ans: Concentr
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