Question

Set three test tubes in the test tube rack. Using a clean dropper for each solution, place 10 drops of 0.01 M NaCl in the first test tube, 10 drops of 0.01 M potassium chromate, K2CrO4 in the second test tube and 10 drops of silver nitrate, AgNO3 in the third test tube. Describe these solutions in the data table. (Use the boxes on the table that would indicate mixing the solution with itself, ie, NaCl with NaCl.)

Answer 1

I'm guessing this is something like what your table looks like?

Answer 2

Each square (besides the diagonals) represents a solution with two components. For example, the first column, second row represents the solution made by reacting NaCl w/ K2CrO4. Write out the reaction between these two products (hint: they will "exchange" ions) and think about whether the product is soluble or not. (solubility rules:https://chem.libretexts.org/Bookshelves/Physical_and_Theoretical_Chemistry_Textbook_Maps/Supplemental_Modules_(Physical_and_Theoretical_Chemistry)/Equilibria/Solubilty/Solubility_Rules)

If the product is insoluble, then you can write that it's a precipitate and describe the color of the precipitate. If the product is soluble, you can write no reaction. The precipitate is the main focus here, but you may also want to make observations about the solutions, like their color or whether you observed any bubbling, etc.