Question

why magnesium ribbon status floating in hot water (1 mark answer)

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Answer 1

Answer:

Magnesium ribbon starts floating in hot water as it is lighter than water. It reacts slowly with boiling water to form MgO and H2.

Explanation:

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Answer 2

Answer:

Explanation

due to bubbles of hydrogen

Magnesium does not react with cold water. It reacts with hot water to form magnesium hydroxide and hydrogen. It also starts floating due to the bubbles of hydrogen gas sticking to its surface.