10 Questions
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?
Slaked lime [Ca(OH)2]
Give an example of an exothermic reaction.
Al + Fe2O3 → Al2O3 + Fe + heat
Define a decomposition reaction and provide an example.
A decomposition reaction is when a single reactant breaks down into two or more products. Example: Thermal decomposition of HgO.
What is rusting and provide the chemical equation for the corrosion of iron?
4Fe(s) + 3O2(from air) + xH2O(moisture) → 2Fe2O3.xH2O(rust)
Explain a displacement reaction with an example.
A more reactive element displaces a less reactive element from its compound. Example: Displacement of a less reactive metal by a more reactive metal.
What happens in a double displacement reaction?
An exchange of ions occurs between the reactants to give new products.
What type of reaction forms an insoluble compound called a precipitate?
Double displacement reaction or precipitation reaction.
Learn about combination reactions, decomposition reactions, and their characteristics through examples such as the reaction between quicklime and water. Explore how these reactions differ in terms of products formed and energy changes.
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