What will you observe when calcium is treated with water? (A) It reacts violently with water. (B) It reacts slowly to form calcium oxide. (C) Bubbles of hydrogen gas are formed which stick to the surface of calcium. (D) It does not react with water.
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Explanation:
Calcium reacts less violently with water and the bubbles of hydrogen gas produced stick to the surface of calcium. Due to which it floats over water surface. Much less heat is produced in this reaction due to which hydrogen gas formed does not catch fire.
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Answer:
C. Bubbles of hydrogen gas are formed which stick to the surface of calcium
Explanation:
It produces calcium hydroxide and the bubbles of the hydrogen gas are stuck to the surface of the calcium.
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