Prelab Brief
To perform and observe different types of chemical reactions and classify them as combination, decomposition, displacement, or double displacement reactions.
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Theory
Observe different types of chemical reactions: combination, decomposition, displacement. To perform and observe different types of chemical reactions and classify them as combination, decomposition, displacement, or double displacement reactions.
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Formula
Principle: To perform and observe different types of chemical reactions and classify them as combination, decomposition, displacement, or double displacement reactions.
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Aim
To perform and observe different types of chemical reactions and classify them as combination, decomposition, displacement, or double displacement reactions.
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Apparatus
- Test tubes & test tube holder
- Bunsen burner
- Spatula
- Chemicals: Iron filings, Copper sulfate solution, Zinc granules, Lead nitrate, Potassium iodide, Ferrous sulfate crystals
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Procedure
- Combination: Heat iron filings in air → iron oxide forms.
- Decomposition: Heat ferrous sulfate crystals → colour change from green to brown.
- Displacement: Add zinc granules to copper sulfate solution → solution turns colourless.
- Double Displacement: Mix lead nitrate + potassium iodide → yellow precipitate of PbI₂.
Pre-Lab Questions
What is the main aim of the Chemical Reactions Lab Experiment?
Which principle is demonstrated in the Chemical Reactions Lab Experiment?
What apparatus is required for this experiment?
Why is Test tubes & test tube holder used in this experiment?
What formula or relationship is verified in this experiment?
What precaution should be followed while performing this experiment?
What conclusion can be drawn from the Chemical Reactions Lab Experiment?