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What is the term for a substance that speeds up chemical reactions but is not used up or permanently changed?
A catalyst speeds up reactions by lowering the activation energy required for the reaction to occur. The concentration of the catalyst does not change and it is neither part of the reactants nor products; it is an intermediate.
What is a substance that lowers the activation energy for a chemical reaction but is not changed or used up in the reaction?
This is called a catalyst. In biology, it is referred to as an enzyme (biological catalyst). Catalysts can also be used to speed up or slow down chemical reactions.
Is it true that catalyst speed chemical reactions but are not changed by them?
Yes, it's true.
A is a substance that can make something happen faster but is not changed itself?
A is a catalyst. Catalysts can speed up chemical reactions by providing an alternative pathway with lower activation energy, but they themselves are not consumed in the reaction.
What happens to a catalyst after a reaction?
In any reaction, a catalyst is never used up or changed. This means that at the end of every reaction you should always get your catalyst back. sometimes in the course of the reaction, the catalyst is used up, but by the end of the reaction it will always be reformed completely.
What is the term for a substance that speeds up chemical reactions but is not used up or permanently changed?
A catalyst speeds up reactions by lowering the activation energy required for the reaction to occur. The concentration of the catalyst does not change and it is neither part of the reactants nor products; it is an intermediate.
What is a substance that lowers the activation energy for a chemical reaction but is not changed or used up in the reaction?
This is called a catalyst. In biology, it is referred to as an enzyme (biological catalyst). Catalysts can also be used to speed up or slow down chemical reactions.
Is it true that catalyst speed chemical reactions but are not changed by them?
Yes, it's true.
What is the substance that changes the rate of chemical reactions without being changed called?
A substance that changes the rate of a chemical reaction without being consumed is called a catalyst. Catalysts work by lowering the activation energy required for the reaction to occur, thereby speeding up the reaction process.
A is a substance that can make something happen faster but is not changed itself?
A is a catalyst. Catalysts can speed up chemical reactions by providing an alternative pathway with lower activation energy, but they themselves are not consumed in the reaction.
What happens to a catalyst after a reaction?
In any reaction, a catalyst is never used up or changed. This means that at the end of every reaction you should always get your catalyst back. sometimes in the course of the reaction, the catalyst is used up, but by the end of the reaction it will always be reformed completely.
Why a substance that speeds up a chemical reaction without being permanently changed itself?
A Catalyst.From wikipedia: "Catalysis is the process in which the rate of a chemical reaction is increased by means of a chemical substance known as a catalyst. Unlike other reagents that participate in the chemical reaction, a catalyst is not consumed by the reaction itself. The catalyst may participate in multiple chemical transformations."http://en.wikipedia.org/wiki/Catalyst
Do Catalyst speed chemical reactions but are not changed by them?
Yes, catalysts speed up chemical reactions by lowering the activation energy required for the reaction to occur, which allows the reactants to convert into products more efficiently. Importantly, catalysts are not consumed or changed by the reaction; they can be recovered unchanged at the end of the process. This characteristic allows catalysts to be used repeatedly in multiple reaction cycles.
What are products reactants and catalysts?
* Reactants: the initial compounds in a chemical reaction. * Products: the final compounds in a chemical reaction. * Catalyst: a chemical compound which help the chemical reaction but not react with the other compounds.
Are enzymes permanently changed in the chemical reactions they aer involved in?
No. Enzymes are not permanently changed in the chemical reactions in which they are involved. After the reaction, they regain their original shape and are free to catalyze another of the same reaction.
What is a substance that affects the rate of a reaction without being changed or used up?
A catalyst is a substance that engages in a chemical reaction but does not remain part of the final products of the reaction. It may, however, be affected in some way as to diminish its effectiveness in further reactions.
Are enzymes permanently changed in the chemical reactions they are involved in?
No. Enzymes are not permanently changed in the chemical reactions in which they are involved. After the reaction, they regain their original shape and are free to catalyze another of the same reaction.
