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Questions and Answers
What are the products formed when magnesium nitride reacts with liquid water?
What occurs when magnesium nitride reacts with water?
When solid magnesium hydroxide is heated, what are the products of the reaction?
Which chemical reaction involves the production of dry ammonia gas?
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What happens when reheating solid magnesium hydroxide?
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Which compound is NOT involved in the reaction between magnesium nitride and water?
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Study Notes
Chemical Reactions Involving Magnesium Nitride
Magnesium nitride (Mg3N2) is a binary compound composed of magnesium (Mg) and nitrogen (N). It is prepared by heating magnesium with molten nitrogen. This compound can be involved in various chemical reactions depending upon the conditions applied to it, including the addition of acids, bases, water, or heat. Let's explore these reactions in detail:
Formation of Magnesium Hydroxide and Ammonia
When liquid water (H2O) is added to magnesium nitride (Mg3N2), the products are magnesium hydroxide (Mg(OH)2) and ammonia (NH3). The balanced chemical equation for this reaction is:
Mg3N2(s) + 6H2O(l) → 3Mg(OH)2(s) + 2NH3(g)
Ammonia Production
If dry ammonia (NH3) gas is produced when the mixture is heated, the balanced chemical equation is:
Mg3N2(s) + 3H2O(l) → 3(MgO(s) + 2NH3(g))
Reheating Reactions
When solid magnesium hydroxide (Mg(OH)2) is heated, it can be decomposed into magnesium oxide (MgO) and water (H2O). This reaction is described by the equation:
Mg(OH)2(s) → MgO(s) + H2O(l)
Reaction with Water
When magnesium nitride (Mg3N2) is reacted with water (H2O), it forms magnesium hydroxide (Mg(OH)2) and ammonia (NH3) gas. The balanced chemical equation for this reaction is:
Mg3N2(s) + 6H2O(l) → 3Mg(OH)2(s) + 2NH3(g)
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Description
Explore various chemical reactions involving magnesium nitride (Mg3N2) such as the formation of magnesium hydroxide, ammonia production, reheating reactions, and reactions with water. Understand the balanced chemical equations and products formed in each reaction.
