Question

10. What happens when a metal reacts with water?
Temperature increases
Temperature decreases
Temperature remains same
Temperature remains same at first & then decreases

Answer 1

Answer:

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Metals react with water and produce a metal oxide and hydrogen gas. ... 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. Metals like aluminium, iron and zinc do not react either with cold or hot water.