Chemistry 30: Module 3: Lesson 3
1
Assignment
MODULE 3: LESSON 3 ASSIGNMENT
This Assignment Booklet is worth __ marks out of the total ___ marks for the assignments
in Unit B. The value of each assignment and each question is stated in the left margin.
Read all parts of your assignment carefully, and record your answers in the appropriate
places. If you have difficulty with an assignment, go back to the textbook and review the
appropriate lesson. Be sure to proofread your answers carefully before submitting your
Assignment Booklet.
(x marks)
Lesson 2 Assignment: Half-reactions
(x mark)
Lab—Testing Predictions
Pre-Lab
1. Use your knowledge of redox reactions to predict which of the combinations of
reactants below will result in a spontaneous reaction. Support your prediction by
showing a net ionic equation and describing one observation of reaction you would
expect from each spontaneous reaction.
(x mark)
System
Reactant 1
Reactant 2
1
HCl(aq)
Mg(s)
2
NiSO4 (aq)
Cu(s)
3
NaOH(aq)
I2 (aq
4
Na2Cr2O7 (aq) and
H2SO4(aq)
SnCl2 (aq)
5
Co(NO3)2 (aq)
Sn (s)
6
CuSO4 (aq)
Fe(s)
2. Design an experiment to test prediction using the following combinations of reactants.
Make sure you consider safety aspects when suggesting how these substances should
be manipulated, and how waste from the reactions should be disposed of. Include a
description of how to perform any diagnostic tests that may be required.
Answer:
(x mark)
Virtual Investigation
3. Record you observations from the virtual investigation for this lab.
Chemistry 30: Module 3: Lesson 3
Observations
of reactants
2
Assignment
HCl(aq)
Mg(s)
NiSO4 (aq)
Cu(s)
NaOH(aq)
I2 (aq
Na2Cr2O7 (aq) and H2SO4(aq)
SnCl2 (aq)
Co(NO3)2 (aq)
Sn (s)
CuSO4 (aq)
Fe(s)
1
Observations
after
reactants
combined
2
Observations
of reactants
Observations
after
reactants
combined
Observations
of reactants
3
Observations
after
reactants
combined
Observations
of reactants
4
Observations
after
reactants
combined
Observations
of reactants
5
Observations
after
reactants
combined
Observations
of reactants
Chemistry 30: Module 3: Lesson 3
6
(x mark)
3
Assignment
Observations
after
reactants
combined
Analysis
4. Is the method you used to make predictions for the outcome of redox reactions valid?
Make specific reference to your predictions and the observed results to support your
answer.
Answer:
Once you have completed all of the questions, submit your work to your teacher.