why does hydrogen bubble stick to metal surface when it reacts with water

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Solution

Calcium reacts with water to form calcium hydroxide and hydrogen gas which bubbles up and stick to the surface of calcium metal making it light due to which calcium floats on water.

Ca(s) + 2H₂O(l) → Ca(OH)₂ (aq) + H₂ (g)

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Similar questions

Q. What happens when calcium is treated with water?
(i) It does not react with water
(ii) It reacts violently with water
(iii) It reacts less violently with water
(iv) Bubbles of hydrogen gas formed stick to the surface of calcium

The metal calcium upon reaction with water forms bubbles of hydrogen gas. These gas bubbles stick to the surface of the metal making the metal to ___ on the water.

Question 6
What happens when calcium is treated with water?

(i) It does not react with water.
(ii) It reacts violently with water.
(iii) It reacts less violently with water.
(iv) Bubbles of hydrogen gas formed stick to the surface of calcium.

a) (i) and (iv) (b) (ii) and (iii)

Q. Metal X does not give hydrogen gas when allowed to react with cold or hot water but it reacts with steam to form metal oxide and hydrogen gas. Metal X cannot be

Q. The metal Calcium upon reaction with water forms bubbles of hydrogen gas. These gas bubbles stick to the surface of the metal making the metal to

___

on water. Identify the correct option to fill in the blank.

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why does hydrogen bubble stick to metal surface when it reacts with water

Calcium reacts with water to form calcium hydroxide and hydrogen gas which bubbles up and stick to the surface of calcium metal making it light due to which calcium floats on water. Ca(s) + 2H2O(l) → Ca(OH) 2 (aq) + H2 (g)

Calcium reacts with water to form calcium hydroxide and hydrogen gas which bubbles up and stick to the surface of calcium metal making it light due to which calcium floats on water.

Ca(s) + 2H₂O(l) → Ca(OH)₂ (aq) + H₂ (g)