Understanding The Chemical Properties Of Acids And Bases
Chapter Name : Acids Bases And Salts |
Sub Topic Code : 102_10_02_01_02 |
Topic Name : Understanding The Chemical Properties Of Acids And Bases |
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Sub Topic Name : Reactions With Metals |
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Introduction
Acids and bases react with metals to form salt and evolve hydrogen gas .
Pre-Requisites:
Acid and base sample , zinc or magnesium.
Activity:
All metals react with acids to form hydrogen gas while only some bases react this way. Find out how and which gas is released in the process by performing the experiment in the lab.
Real Life Question:
How do acids and bases react with metals ?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Acid + metal Base + metal | A salt is formed with release of hydrogen gas. A salt is formed with release of hydrogen gas. |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| Chemical substance + metal | Respective salt and and hydrogen gas production (detected by popping sound production in presence of a candle). |
Real life uses :
To understand phenomenon of various expansions due to metals releasing hydrogen gas on reaction with acids or bases.
Places to visit :
Your school lab
Practical examples around us
| Examples | Explainations |
|---|---|
| Amalgam in cavity | Amalgam in cavity It expands due to release of hydrogen gas . |
What you learn in Theory:
Chemical reaction of acids and bases with metals .
What you learn in Practice:
Acids and bases release hydrogen gas on reaction with metals.