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level: Catalysts

Questions and Answers List

level questions: Catalysts

Question	Answer
A substance that increases the rate of a chemical reaction without being consumed in the process.	Catalyst
What is the primary function of a catalyst in a chemical reaction?	A catalyst increases the rate of a chemical reaction without being consumed during the process.
Properties of catalysts, including their unchanged nature at the end of the reaction, lack of alteration to reaction products, and absence from chemical equations. Manganese (IV) oxide is the catalyst for this reaction, but is not shown in the equation:	Characteristics of Catalysts
Name some characteristics of catalysts in chemical reactions	Catalysts remain unchanged at the end of the reaction, both chemically and in terms of their mass. They do not alter the products of the reaction and do not appear in chemical equations.
An example of a catalyst used in the decomposition of hydrogen peroxide to produce oxygen and water.	Manganese (IV) Oxide as a Catalyst
What is the role of manganese (IV) oxide in the decomposition of hydrogen peroxide, and is it shown in the chemical equation?	Manganese (IV) oxide is the catalyst for the reaction but is not shown in the chemical equation.
Biological catalysts, often proteins, that accelerate biochemical reactions in living organisms.	Enzymes
What are enzymes, and where are they commonly found in living organisms?	Enzymes are biological catalysts, often proteins, found in living organisms.
An example of enzymes acting as catalysts in yeast, accelerating fermentation reactions in the production of wine and beer.	Enzymes in Yeast
Provide an example of enzymes functioning as catalysts in a specific process.	Enzymes in yeast speed up fermentation reactions, contributing to the production of wine and beer.
The route provided by a catalyst that has a lower activation energy, leading to more frequent successful collisions and an increased rate of reaction.	Alternative Reaction Pathway
What does a catalyst provide in terms of the reaction pathway, and how does it impact the rate of reaction?	Catalysts offer an alternative reaction pathway with a lower activation energy, resulting in more frequent successful collisions and an increased rate of reaction.