Question

How does magnesium react with water?

Answer 1

Hint: Magnesium is the eighth most plentiful element on the planet, accounting for around 2% of the earth's crust. It is the most abundant element found in seawater. It can be found in subsurface brines and salty layers as well as in seawater.

Complete Step By Step Answer:
Water has no effect on magnesium metals at room temperature. Magnesium is a slow-reacting element in general, but as oxygen levels rise, so does its reactivity. Magnesium can also form magnesium hydroxide and hydrogen gas when it reacts with water vapour.
When magnesium reacts with hot water, magnesium hydroxide and hydrogen are formed.
 $Mg(s)+2H_{2}O(I)\to Mg(OH{)}_2(aq)+H_2(g)$
Magnesium does not react with cold water because it is coated with insoluble Magnesium hydroxide, which prevents water from coming into contact with it.

Additional Information:
A scientist uses magnesium in medicine. It's commonly used to treat skin issues, attention deficit hyperactivity disorder (ADHD), anxiety, mania, and post-surgery recuperation, among other things.
Magnesium is abundant in this green, leafy vegetable. Magnesium can also be found in whole grains, seeds, and nuts (most notably almonds).
Magnesium is also present in the flashbulbs. When magnesium burns, it emits a bright light that aids photographers in taking images in low light.

Note:
Some metals react quickly and easily with water. Water reacts severely with "light" metals in general. Some metals, on the other hand, react with water more slowly. As the metal gets heavier, the action becomes slower and more difficult. Water gains more energy as it heats up. The more energy water has, the better the reaction.