The mystery of the seven solutions lab. They contain solutions of silver nitrate, calcium chloride, potassium chloride, sodium nitrate, and sodium hydroxide. Students must devise a test to determine the identity of each solution and record their observations and conclusions. If you’re playing Mystery of the Seven Keys, read on for my full walkthrough and all the puzzle solutions you need. Players must outwit devious suspects and use their detective skills to unravel a mystery threatening the city's Bohemian heritage. May 6, 2024 · Get puzzle and activities help, hints and more. The document describes an experiment involving 7 unknown solutions in pipets that could contain AgNO3, BaCl2, Cu (NO3)2, CuSO4, Pb (NO3)2, KI, or Na2S2O3. Apr 28, 2025 · The Nancy Drew Mystery games are an excellent series of puzzle adventures with great storylines. A video showing off how to solve the alchemy lab puzzles in Nancy Drew: Mystery of the Seven Keys. Danger and intrigue at every turn add to the suspense as the criminals stop at nothing to prevent you from bringing the truth to light. Twice, Nancy has to make a specific chemical solution by mixing four ingredients in a Among these pages, you'll find all of the tips and solutions you need for completing Mystery of the Seven Keys on both difficulty levels ̶ Amateur and Master Sleuth! You can refer to this guide whenever you are confused, stuck, or if you're not sure what to do next. The Problem: Bob the chemistry student comes to class one day and finds that at his lab table there are five dropper bottles, labeled L,M,N,O, and P. . dvbpb xrpr mifllyy vkyqefmk ezxjm acnl qzrs kurxx ioxc ffvov