why does calcium starts flowing when it reacts with water..
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10
Heyaa folk,
Actually, when calcium reacts with water, the reaction is less vigorous and it forms calcium hydroxide with release of hydrogen gas, but the heat evolved is not sufficient for hydrogen gas to catch fire and so it sticks over the surface of calcium hydroxide and the wall of container which do not let the calcium. Calcium reacts slowly with water. The reaction forms calcium hydroxide, Ca(OH)2 and hydrogen gas (H2). The calcium metal sinks in water and after an hour or so bubbles of hydrogen are evident, stuck to the surface of the metal. The reaction of calcium with water is less violent. SO, the heat released is not sufficient for the hydrogen to catch fire. Calcium starts floating because the bubbles of hydrogen gas which are formed during the reaction stick to the surface of the metal and hence caclium floats on water.
Hope it helps u :)
- no4 ✯ Brainly Star ✯
Actually, when calcium reacts with water, the reaction is less vigorous and it forms calcium hydroxide with release of hydrogen gas, but the heat evolved is not sufficient for hydrogen gas to catch fire and so it sticks over the surface of calcium hydroxide and the wall of container which do not let the calcium. Calcium reacts slowly with water. The reaction forms calcium hydroxide, Ca(OH)2 and hydrogen gas (H2). The calcium metal sinks in water and after an hour or so bubbles of hydrogen are evident, stuck to the surface of the metal. The reaction of calcium with water is less violent. SO, the heat released is not sufficient for the hydrogen to catch fire. Calcium starts floating because the bubbles of hydrogen gas which are formed during the reaction stick to the surface of the metal and hence caclium floats on water.
Hope it helps u :)
- no4 ✯ Brainly Star ✯
Answered by
8
Hola !!
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>>>calcium floats on water because the hydrogen gas evolved on reaction sticks to the walls of the container where reaction is taking place.
•Ca + 2H2O----- Ca(OH)2 + H2.
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Hopefully , this helps uhh !!! :)
`••••••••••••••••••••••••••••••••••••••••••••••••
>>>calcium floats on water because the hydrogen gas evolved on reaction sticks to the walls of the container where reaction is taking place.
•Ca + 2H2O----- Ca(OH)2 + H2.
•••••••••••••••••••••••••••••••••••••••••••••••••••
Hopefully , this helps uhh !!! :)
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