Reaction with water _ Group 2..
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Answer:
If water reacts with quicklime it is exo gernic reaction
Metals in group-2 or alkaline earth metals react more intensely with water as we go down the group because of decreasing ionization potential, increasing metallic character and increasing atomic size.
Beryllium does not react with water or steam under any conditions.
Magnesium reacts with boiling water to give magnesium hydroxide and hydrogen gas and with steam to give magnesium oxide and hydrogen gas.
Calcium reacts exothermically with cold water or water at room temperature to give calcium hydroxide and hydrogen gas.
Both strontium and barium react exothermically with water to produce their hydroxides ( Sr(OH)2 and Ba(OH)2 ) and hydrogen gas.
Strontium sinks into the water as it is heavier and then bubbles of hydrogen are observed.
Radium reacts exothermically and very vigourously with water in the same manner.