Therefore, not all transition metals precipitate with halides. Our observations agreed with the majority of class data. According to the class data, we see that five of the transition metals, including iron and nickel, do not form precipitates with halides such as chloride. However, if you examine the data, chorides reacting with silver do form precipitates, since the class data said that 75 out of 90 teams observed some kind of precipitates when silver was reacted with chloride, bromide, and iodide. Therefore, we can be certain in saying that not all metal-halide compounds are insoluble and therefore do not always form precipitates.
Silver is the exception.
C. Use the grading sheet as a roadmap of what's expected of you. The sheet with the expected amount of points at the back of the lab will help you figure out what work you should put into each section, and how your group data sheets will be graded. Don't forget to include one of these for EACH student into your group data packet when you hand them in. D. Look for trends in the class data, not absolutes. We expect you're as careful as possible as teams and when on computer duty to enter in what you truly observed into the class database.