Question

When magnesium oxide reacts with water, the solution formed will turn?​

Answer 1

Answer:

MgO + H2O → Mg(OH)2.

Magnesium oxide reacts with ionised water to produce magnesium hydroxide. This is a combination reaction. This reaction takes place at a temperature much higher than room temperature, around 120°C and can be reversed by reheating magnesium hydroxide.

Magnesium metals are not affected by water at room temperature. Magnesium generally is a slow-reacting element, but reactivity increases with oxygen levels. Furthermore, magnesium reacts with water vapor to magnesium hydroxide and hydrogen gas:

Mg (s) + 2H2O(g) -> Mg(OH)2(aq) + H2(g)

Magnesium fires cannot be extinguished by water. Magnesium continues to burn after oxygen is depleted. It than reacts with nitrogen from air to form magnesium nitride (Mg3N2). When attempts are made to extinguish magnesium fires with water, magnesium aggressively reacts with hydrogen gas. To prevent any damage, a magnesium fire must be covered in sand.

Explanation:

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Answer 2

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Magnesium oxide (MgO) in water (H2O) will react to form magnesium hydroxide, or Mg(OH)2.

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