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What is differences by alkali metal and alkaine earth metal which provided colour
what are anomalous behavour of aluminium
The nucleus of an element contains 9 protons. Its valency would be : (1) 1 (2) 3 (3) 2 (4) 5 Ans: 1
brief notes &uses
I need to find the balanced formula for calcium hydroxide + potassium carbonatequestion..
I want to know how to calculate hybridisation of an atom in a given compound like I want to calculate hybridisation of Boron & Oxygen in this boric acid compound H 3 BO 3 I even w
Q. What are the rules used for round off numbers? 1. If the digit to the instantaneous right of the last significant figure is less than five don't change the last significan
Comment on the validity of the following statements, giving reasons: (a) Thermodynamically an exothermic reaction is sometimes not spontaneous. (b) The entropy of steam is mo
Evaluate the relation between rate constant k 1 and k 2 of a first order reaction when temperature changes from 270 K to 300 K and activation energy is zero?
Q. Explain about Electron-Dot Structures? Write an electron-dot structure for a impartial atom of arsenic an element used in semiconductor materials because of its electron con
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