what happens when lithium reacts with water
Lithium reacts with water to form lithium hydroxide and hydrogen gas ; the reaction is exothermic and usually produces fizzing or bubbling as the gas escapes.
What you would observe
- The lithium often floats on the water because it is less dense than water.
- It moves around and fizzes as hydrogen gas is released.
- The solution becomes alkaline/basic because lithium hydroxide dissolves in the water.
Chemical equation
2Li(s)+2H2O(l)→2LiOH(aq)+H2(g)2Li(s)+2H_2O(l)\rightarrow 2LiOH(aq)+H_2(g)2Li(s)+2H2O(l)→2LiOH(aq)+H2(g)
Safety note
This reaction can release flammable hydrogen and heat, so it should only be done in a controlled lab setting with proper supervision.
If you want, I can also turn this into a short classroom-style answer or a one-sentence “Quick Scoop” version.