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1. What does one mean by endothermic reactions? Give example.
Chemical reactions that or require energy to proceed are called endothermic reactions.
Example: - Heat.
2. What is the difference between displacement and double displacement reactions?
Write equations for these reactions.
Write equations for these reactions.
In displacement reactions, a more reactive metal displaces a less reactive metal from its solution.
For example,
This is a displacement reaction where iron displaces copper from its solution.
In double displacement reactions, two reactants in solution exchange their ions.
For example,
This is a double displacement reaction where silver nitrate and sodium chloride exchange \(Cl^–\) and \(NO_3^–\) ions between them.
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