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🌀Chemical Properties of Alkali Earth Metals: 1. Reaction with water : Mg + H2O → MgO + H2 or,  Mg + 2H2O → Mg (OH)2 + H2 Ca + 2H2O → Ca(OH)2 + H2 …

🌀Notes on Special Theory of Relativity:- Frame of reference:- A system of coordinates whose axes can be suitably chosen is said to be a frame of re…