Types Of Chemical Reactions
Chapter Name : Chemical Reactions And Equations |
Sub Topic Code : 102_10_01_02_02 |
Topic Name : Types Of Chemical Reactions |
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Sub Topic Name : Decomposition Reaction |
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Introduction
Discuss the experiment.
Pre-Requisites:
Chemical equations, chemical formulae of basic compounds
Activity:
A particular kind of a compound will decompose into particular set of compounds. Randomly pick compounds and see what they would decompose into.
Real Life Question:
“How do we get quick lime that is used in manufacture of cement?”
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| decomposition reaction | a chemical reaction where a single reactant breaks down to give simpler products |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| Take any compound and give it some form of energy | Observe and see what products are formed, whether any gas is liberated or not etc. |
Real life uses :
Fluffiness of cake due to baking soda.
Places to visit :
Your Lab. Perform the following decomposition reactions 1) Decomposition of ferrous sulphate 2) decomposition of calcium carbonate 3) decomposition of lead nitrate 4) electrolysis of water
Practical examples around us
| Examples | Explainations |
|---|---|
| Cake becomes fluffy due to addition of baking soda Quick lime used in manufacturing of cement Working of fireworks | On Decomposition, baking soda gives sodium carbonate, carbon dioxide gas (makes the cake fluffy) and water. Decomposition Decomposition |
What you learn in Theory:
Decomposition Reactions
What you learn in Practice:
How these reactions can be used to manufacture important compounds…