ID of Chemical Reactions Lab

Identification of Chemical Reactions

Objective: To identify the mystery solution by observing all the possible combinations and comparing those observations to the mystery solution.

1. Give a physical description of each of the seven solutions that you will use today.

                      Name:

Solution #1: ____________________________

Solution #2: ____________________________

Solution #3: ____________________________

Solution #4: ____________________________

Solution #5: ____________________________

Solution #6: ____________________________

Solution #7: ____________________________

2. Mix every possible combination using 3-4 drops of each solution in the cavities of your testing tray.  Stir each mixture with a clean toothpick (use both sides of toothpick).  Record your observations and tell whether if it was a chemical or physical change that occurred.

Sol. #1 with #2:

Sol. #1 with #3:

Sol. #1 with #4:

Sol. #1 with #5:

Sol. #1 with #6:

Sol. #1 with #7:

Sol. #2 with #3:

Sol. #2 with #4:

Sol. #2 with #5:

Sol. #2 with #6:

Sol. #2 with #7:

Sol. #3 with #4:

Sol. #3 with #5:

Sol. #3 with #6:

Sol. #3 with #7:

Sol. #4 with #5:

Sol. #4 with #6:

Sol. #4 with #7:

Sol. #5 with #6:

Sol. #5 with #7:

Sol. #6 with #7:

Unknown Sol. with #1:

Unknown Sol. with #2:

Unknown Sol. with #3:

Unknown Sol. with #4:

Unknown Sol. with #5:

Unknown Sol. with #6:

Unknown Sol. with #7:

3. What is the identity of the unknown solution (give the name of the solution)?:

4. What signs of a chemical reaction did you observe?

5. Identify the ions that make up these ionic compounds and write the cation or anion (make sure to include its charge) and give the formula.  (example: silver chloride—Ag⁺ and Cl^- and formula AgCl)

          a. calcium chloride

          b. sodium oxide

          c. beryllium oxide