The image displays a page from a textbook discussing nitrogen and nitrogen compounds. Text on the left side of the page describes nitrogen as a colorless, odorless, and tasteless gas that makes up about 78% of the atmosphere. It details its occurrence in nature, its role in plant and animal life, and its inertness. The section then moves on to the laboratory preparation of nitrogen, outlining methods such as passing air through heated copper turnings to remove oxygen, or by removing other constituents from air by passing it through caustic soda and heated copper turnings. The text also mentions that nitrogen can be produced by the decomposition of ammonium salts like ammonium nitrite and ammonium dichromate. On the right side of the page, chemical equations are presented for the preparation of nitrogen. One equation shows the reaction of sodium nitrite with ammonium chloride to produce ammonium nitrite, which then decomposes. Another equation shows the decomposition of ammonium dichromate. The bottom portion of the image features a diagram illustrating a laboratory setup for gas preparation and collection. The setup includes flasks, tubes, a heating apparatus, and a collection vessel, likely for collecting a gas over water. The image does not contain any information that would allow for its location to be determined, including in Jalingo, Nigeria. in Jalingo, Nigeria

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Jun 29, 2026, 11:13 PM

Jalingo, Nigeria

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The image displays a page from a textbook discussing nitrogen and nitrogen compounds. Text on the left side of the page describes nitrogen as a colorless, odorless, and tasteless gas that makes up about 78% of the atmosphere. It details its occurrence in nature, its role in plant and animal life, and its inertness. The section then moves on to the laboratory preparation of nitrogen, outlining methods such as passing air through heated copper turnings to remove oxygen, or by removing other constituents from air by passing it through caustic soda and heated copper turnings. The text also mentions that nitrogen can be produced by the decomposition of ammonium salts like ammonium nitrite and ammonium dichromate. On the right side of the page, chemical equations are presented for the preparation of nitrogen. One equation shows the reaction of sodium nitrite with ammonium chloride to produce ammonium nitrite, which then decomposes. Another equation shows the decomposition of ammonium dichromate. The bottom portion of the image features a diagram illustrating a laboratory setup for gas preparation and collection. The setup includes flasks, tubes, a heating apparatus, and a collection vessel, likely for collecting a gas over water. The image does not contain any information that would allow for its location to be determined, including in Jalingo, Nigeria.

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