Why calcium metal after reacting with water starts floating on its surface? Write the chemical equation for the reaction
Answers
Answered by
316
After calcium reacts with water, hydrogen gas is released in the reaction. This bubbles of hydrogen gas stick to the surface of the metal. The buoyancy of the gas bubbles lifts the calcium up. Therefore, calcium floats on water.
The reaction of calcium with water is less violent. However, the heat released is not sufficient for the hydrogen to catch fire.
Ca (s) + 2H₂O (l) → Ca(OH)₂ (aq) + H₂ (g)
Answered by
112
In the reaction between calcium an metal , the calcium hydroxide and hydrogen is the product. As soon as hydrogen is produced it makes bubbles in the water of itself. The reaction is like
Ca + 2H20 ⇒ Ca(OH)2 +H2
Hydrogen bubbles has the tendency to stick to the metal like calcium as the result calcium become lighter also, so this takes the calcium with bubbles to the surface and starts floating. In this reaction very small amount of heat is also released.
Ca + 2H20 ⇒ Ca(OH)2 +H2
Hydrogen bubbles has the tendency to stick to the metal like calcium as the result calcium become lighter also, so this takes the calcium with bubbles to the surface and starts floating. In this reaction very small amount of heat is also released.
Similar questions