Describe three similarities and one difference in the reactions of lithium and potassium with water.

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THEY BOTH  React violently with water 
THEY Both: Give off heat 
THEY Both: Give off light 

Lithium will float on the water and become engulfed in flame and then die off, and Potassium will become engulfed in flames and then explode.

Answer earth,water,fire and air;