Question #69d7d

1 Answer
Mar 23, 2017

Answer:

#3"Mg"_ ((s)) + "N"_ (2(g)) -> "Mg"_ 3"N"_ (2(s))#

Explanation:

Magnesium will react with nitrogen gas to produce magnesium nitride, #"Mg"_3"N"_2#, and ionic compound that consists of magnesium cations, #"Mg"^(2+)#, and nitride anions, #"N"^(3-)#.

http://chem-guide.blogspot.ro/2010/04/lewis-symbol-to-represent-formation-of.html

The unbalanced chemical equation looks like this

#"Mg"_ ((s)) + "N"_ (2(g)) -> "Mg"_ 3"N"_ (2(s))#

Notice that all you need to do in order to balance this chemical equation is multiply magnesium metal by #3#. This will give you a total of #3# atoms of magnesium and #2# atoms of nitrogen on both sides of the equation.

#3"Mg"_ ((s)) + "N"_ (2(g)) -> "Mg"_ 3"N"_ (2(s))#

This reaction is an example of a redox reaction. Here magnesium is being oxidized and nitrogen gas is being reduced.