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Transcript 
Chemical or Physical Change
Laboratory #2
Formal Lab Write-up
Due Mon Nov 8th The pre-lab
1. Hypothesis
 predict whether a physical or chemical
change will occur
 Use your previous experiences in the
lab or do research to back up your
answer.
2. Observations Tables
 Create a table to show initial and final
observations for each experiment.
Experiment 1
Aluminium + Sodium Hydroxide
Experiment 2
Sodium Hydroxide + sugar + Potassium Permanganate
Experiment 3
Aluminium + Copper Chloride
Experiment 4
Magnesium + Hydrochloric Acid
Experiment 5
Phenolphthalein + Sodium Hydroxide
Experiment 6
Calcium Chloride + Water
Experiment 7
Polysaccharide Carbohydrate Solution + Iodine
Experiment 8
Sodium Hydroxide + Cobalt Chloride
Experiment 8
Potassium Permanganate + Water
Due Nov 22nd: Must include:
•
•
•
•
•
•
•
•
Title Page
Introduction
Purpose
Hypothesis
Materials
Procedure
Data/Observations
Conclusion
Go over previous lab
Heating of Cobalt Chloride
chemical or physical?
Addition of Lead chloride to Potassium
Iodide
chemical or physical?
Addition of zinc metal to sodium hydroxide
chemical or physical?
Addition of glucose solution + water
chemical or physical?
Addition of carbonyldiamine to water
chemical or physical?
Addition of acetic acid to bromothymol blue
chemical or physical?
Addition of cupric nitrate crystal to water
chemical or physical?
Addition of iodine solution to polysaccharide
carbohydrate
chemical or physical?
Heating of Magnesium Sulphate
Heptahydrate
chemical or physical?
Common lab faux-pas
The pre-lab
• Hypothesis
• Observations Table
Must include:
•
•
•
•
•
•
•
•
Title Page
Introduction
Purpose
Hypothesis
Materials
Procedure
Data/Observations
Conclusion
Previous Lab Experiments…
Experiment 1
Aluminium + Sodium Hydroxide
Experiment 2
Sodium Hydroxide + sugar + Potassium Permanganate
Experiment 3
Aluminium + Copper Chloride
Experiment 4
Magnesium + Hydrochloric Acid
Experiment 5
Phenolphthalein + Sodium Hydroxide
Experiment 6
Calcium Chloride + Water
Experiment 7
Polysaccharide Carbohydrate Solution + Iodine
Experiment 8
Sodium Hydroxide + Cobalt Chloride
Experiment 9
Potassium Permanganate + Water
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