Types of Chemical Reactions
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Questions and Answers

What is the chemical equation for the precipitation reaction between potassium chloride and silver nitrate?

AgNO3(aqueous) + KCl(aqueous) → AgCl(precipitate) + KNO3(aqueous)

Define oxidation and reduction in the context of redox reactions.

Oxidation: Substance loses electrons or gains oxygen or loses hydrogen. Reduction: Substance gains electrons or loses oxygen or gains hydrogen.

What is the difference between an oxidizing agent and a reducing agent?

Oxidizing agent oxidizes another substance and self-gets reduced. Reducing agent reduces another substance and self-gets oxidized.

What is the product formed when quicklime reacts with water?

<p>Slaked lime [Ca(OH)2]</p> Signup and view all the answers

Give an example of an exothermic reaction.

<p>Al + Fe2O3 → Al2O3 + Fe + heat</p> Signup and view all the answers

Define a decomposition reaction and provide an example.

<p>A decomposition reaction is when a single reactant breaks down into two or more products. Example: Thermal decomposition of HgO.</p> Signup and view all the answers

What is rusting and provide the chemical equation for the corrosion of iron?

<p>4Fe(s) + 3O2(from air) + xH2O(moisture) → 2Fe2O3.xH2O(rust)</p> Signup and view all the answers

Explain a displacement reaction with an example.

<p>A more reactive element displaces a less reactive element from its compound. Example: Displacement of a less reactive metal by a more reactive metal.</p> Signup and view all the answers

What happens in a double displacement reaction?

<p>An exchange of ions occurs between the reactants to give new products.</p> Signup and view all the answers

What type of reaction forms an insoluble compound called a precipitate?

<p>Double displacement reaction or precipitation reaction.</p> Signup and view all the answers

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