Purpose: To observe the different characteristics of different
types of reactions.
Materials: steel wool CuSO4 * 5H2O
Mg
Zn
Al
CuSO4 (aq) CuCl2 (aq) KI (aq) Pb(NO3)2 (aq) BaCl2 (aq)
Na2CO3 (aq) HCl (aq)
Procedure:
Part 1
1. Obtain a watch glass and mass it.
4. Place on watch
2. Place a sample of steel wool on
glass, and re-mass.
it and re-mass.
3. Using tongs, hold steel wool in the top area of a manly flame
for 5 minutes.
Part 2
1. Obtain a test tube and place about 1cm worth of CuSO4 (s) in it
and mass.
2. Using a test tube holder, hold the TT horizontally and
spread out the solid so covers ¾ of the TT.
3. Hold the TT in a manly flame for 4 minutes and observe.
Be sure to move it back and forth and even flip it over
carefully.
4. Let cool and re-mass.
5. Add a few drops of water and observe.
6. Dispose solid in trash.
Part 3
1. Obtain 3 test tubes.
2. Put the following solutions in the its own test tube:
a. 3ml CuSO4
b. 3ml HCl
c. 3ml CuCl2
3. All at the same time put a piece of the following in the test
tube:
a. Mg
b. Zn
c. Al
4. Let them react for 3 minutes and observe
5. Let all sit until reaction is done and observe.
Part 4
1. Obtain 2 test tubes.
2. In one test tube, add 3ml of KI (aq), In the other add 3ml of
Pb(NO3)2 (aq)
3. Slowly pour the KI into the other TT and observe.
4. Repeat steps 1-3 with BaCl2 and Na2CO3
Part 1
Mass of watch glass
________g
Mass of steel wool + glass
Mass of steel wool
Mass of product + glass
Mass of product
________g
____________g
________g
__________g
Observations:
Part 2
Mass of TT and CuSO4 (s)
Mass of product + TT
Observations:
______g
_______g
Part 3
Substance
3 min
At end
A
B
C
Part 4
Reaction
KI + Pb(NO3)
BaCl2 + Na2CO3
Observations
Lab Analysis
Answer the following questions for each part in the
lab. No need to write questions but use complete
sentences in answers.
Part 1
1. What evidence did you have for a chemical
reaction. Why?
2. What type of reaction would you classify this as?
3. Write the balance chemical reaction.
Part 2
1. What evidence was there that a chemical reaction
occurred. Why?
2. How does the hydrate (water) affect the
chemical?
3. What would you classify this reaction as?
4. Write the balanced chemical reaction.
Part 3
1. What evidence did you have that a chemical reaction
happened in each trial?
2. How would you classify each of these reactions?
3. Write the balanced equations for each trial.
4. Does your balanced equation help explain your
observations better?
Part 4
1. What evidence of a chemical reaction did
you observe?
2. What would you call the solid particles that
formed?
3. Write the balance equations for each trial.
Conclusion lead in questions
1. What was done in this lab and what was being
investigated.
2. What type of chemical reactions did you
observe?
3. Which type of reaction did you find the most
interesting?
4. Does seeing each reaction in action help
understand how they work better?