A General Chemistry Textmap constructed to supplant Nivaldo Tro's textbook Chemistry: A Molecular Approach Thumbnail: Copper from a wire is displaced by silver in a silver nitrate solution it is dippe...A General Chemistry Textmap constructed to supplant Nivaldo Tro's textbook Chemistry: A Molecular Approach Thumbnail: Copper from a wire is displaced by silver in a silver nitrate solution it is dipped into, and solid silver precipitates out. (CC BY-SA 3.0 au; Toby Hudson via Wikipedia).