Report Contents and Questions
The purpose should be several well constructed sentences describing what your experiment was designed to accomplish and the criteria used to determine success.  The procedure section should reference the lab manual and note any changes made to the experiment. For this experiment the procedure section should also state whether you tested potassium salts or sodium salts, and whose data you used for the other set.
The data section should include two tables. The first table should be for the solubility tests. This table should include a) the elements involved in the test, b) observations for each test, and c) solubility of each element. Make sure the observations in your lab report match those that you wrote in your lab notebook during lab. The second table should be for the reactivity tests and should include a) the elements involved in the test b) observations and c) results of the test, both in terms of reactivity and electronegativity.
The calculation section should have the six balanced equations for the reactions being studied based on your electronegativity data. If no reaction occurred write “no reaction” as the product. The balanced equations should be in one of the following formats and either typed or written in ink.

The conclusion should be several well developed paragraphs that include the following: a discussion of the results, including a list of the halogens in order of electronegativity, identifying the most electronegative, with support from the data section. This discussion should also include a discussion of the agreement between your results and the pre-lab predictions. An explanation of how you decided which reactions occurred and which did not should be included. A final discussion should focus on what the solubility tests indicated. Finally, include a discussion of any errors in the experiment. 
Answer the Following Questions:
1) This experiment uses a qualitative colorimetric process. What is meant by this statement?
2) All of the halogens with the exception of fluorine make strong acids. Using electronegativity, explain why hydrofluoric acid is a weak acid.