Describe the Products of Several Reactions: Determining the Identity of Unknown Compounds

Describe the Products of Several Reactions
Here you'll look at the results of each combination of two reagents. Take careful observations! Note color changes, formation of precipitates, and formation of gasses (indicated by bubbles). Rushing through this part will make your unknown determination harder. Of course, feel free to experiment. Add another drop of one or both reagents if you can't see anything at first, and don't forget to stir.
Helpful hints: Come up with consistent abbreviations for your observations. Add a drop of UI to reactions between acids and bases after you run them without it. When you react copper sulfate (CuSO₄) with ammonia (NH₃), add one drop of the copper sulfate to a few drops of ammonia. Observe. Then add a few more drops and observe again. There should be a change. Run all the reactions with ammonia separately (perhaps after you do all the others). The gas can affect other reactions.
Before you run any reactions, record your observations about the compounds themselves (these may be very short).
Mix the reagents in pairs according to the reaction chart.
Record your observations on the observations chart.	Click here for full-size .pdf
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