Problem: When magnesium metal is burned in air, two products are produced. One is magnesium oxide, MgO. The other is the product of the reaction of Mg with molecular nitrogen, magnesium nitride. When water is added to magnesium nitride, it reacts to form magnesium oxide and ammonia gas.Write a balanced equation for the reaction of magnesium nitride with water.

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We’re being asked to write the balanced equation for the reaction of magnesium nitride with water.


We will do the following steps to solve the problem:

Step 1: Write the chemical reaction

Step 2: Balance the chemical reaction


Given: when water is added to magnesium nitride, it reacts to form magnesium oxide and ammonia gas.


Step 1: Write the chemical reaction


Before balancing the chemical reaction, let’s first write the chemical formula of the compounds involved in the reaction.


Reactants:


Magnesium Nitride

▪ Magnesium Group 2A +2 charge Mg2+

▪ Nitride nitrogen in the oxidation state of -3 N3-  -3 charge

▪ Balance the charges of Mg2+ and N3-   exchange (criss-cross) the numbers of the charges

            aluminum acetate: Mg3N2(s)

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Problem Details

When magnesium metal is burned in air, two products are produced. One is magnesium oxide, MgO. The other is the product of the reaction of Mg with molecular nitrogen, magnesium nitride. When water is added to magnesium nitride, it reacts to form magnesium oxide and ammonia gas.

Write a balanced equation for the reaction of magnesium nitride with water.