Question

how does Mg react with hot and cold water

Answer 1

Magnesium virtually has no reaction with cold water. It reacts slowly with hot water to give hydrogen gas and white magnesium hydroxide, which is only slightly soluble in water. Hydrogen gas is given out in the reaction
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Answer 2

Answer:

(Mg) magnesium will not react with cold water because it become coated with magnesium hydroxide which is insoluble so it prevent water coming into a contract with magnesium

Explanation: