This media file is a photograph of a page from a textbook. The page contains text and chemical diagrams. The text is primarily in English and discusses the cyclic formation of monosaccharides. It explains how a hydroxyl group reacts with an aldehyde or ketone to form hemiacetal or hemiketal functional groups. The text is accompanied by two chemical reaction schemes. The first scheme illustrates the formation of a hemiacetal from an alcohol and an aldehyde. The second scheme shows the formation of a hemiketal from an alcohol and a ketone. The visible text includes the following phrases: "Monosaccharide Structure (Continued)", "Ring (Cyclic) Formation", "The hydroxyl group reacts with the carbonyl carbon on an aldehyde or ketone group to form hemiacetal or hemiketal functional groups respectively as shown below:", and labels for the chemical structures such as "alcohol", "aldehyde", "hemiacetal", "ketone", and "hemiketal". There is also a page number "36" visible at the bottom left of the image. The scene is a page of a book, likely a chemistry or organic chemistry textbook. There are no people, specific objects other than the book page itself, or any cues about the time of day, weather, or emotions. The setting appears to be an indoor environment where such a textbook would be found, such as a classroom, library, or study. The location context provided states Jalingo, Nigeria, but there are no visual cues within the image to support or contradict this. The activity taking place is the presentation of educational material through text and diagrams. in Jalingo, Nigeria

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Jun 30, 2026, 4:49 PM

Jalingo, Nigeria

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This media file is a photograph of a page from a textbook. The page contains text and chemical diagrams. The text is primarily in English and discusses the cyclic formation of monosaccharides. It explains how a hydroxyl group reacts with an aldehyde or ketone to form hemiacetal or hemiketal functional groups. The text is accompanied by two chemical reaction schemes. The first scheme illustrates the formation of a hemiacetal from an alcohol and an aldehyde. The second scheme shows the formation of a hemiketal from an alcohol and a ketone. The visible text includes the following phrases: "Monosaccharide Structure (Continued)", "Ring (Cyclic) Formation", "The hydroxyl group reacts with the carbonyl carbon on an aldehyde or ketone group to form hemiacetal or hemiketal functional groups respectively as shown below:", and labels for the chemical structures such as "alcohol", "aldehyde", "hemiacetal", "ketone", and "hemiketal". There is also a page number "36" visible at the bottom left of the image. The scene is a page of a book, likely a chemistry or organic chemistry textbook. There are no people, specific objects other than the book page itself, or any cues about the time of day, weather, or emotions. The setting appears to be an indoor environment where such a textbook would be found, such as a classroom, library, or study. The location context provided states Jalingo, Nigeria, but there are no visual cues within the image to support or contradict this. The activity taking place is the presentation of educational material through text and diagrams.

Symbol

14D00

Volume

4,430

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+$0.01

Revenue

+$0.01

TVL

$0.46

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