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What is a general name for an organic catalyst that speeds up chemical reactions but if not changed by this reaction?
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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 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 substances are responsible for accelerating chemical reactions in cells?
The substances which cause chemical reactions in a cell are protein catalysts called enzymes. Some cause reactions that would otherwise not occur and others speed reactions up. Carbon dioxide dissolves in water by itself but since this a dangerous substance to have in cells, there is a catalyst that dissolves it 300 times faster.
Are enzymes permanently changed in the chemical reactions they aer involved in?
No, enzymes are not permanently changed in the chemical reactions they are involved in. Enzymes are catalysts that facilitate chemical reactions by lowering the activation energy, and they remain unchanged after the reaction takes place. They can be used repeatedly in multiple reactions.
What is the substance that changes the rate of chemical reactions without being changed called?
In biological systems an enzyme speeds up the reaction without changing it. In other chemical reactions this function is achieved by a catalyst.
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 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.
Do catalyst speed up a chemical reaction but not changed by them?
Yes, that is correct.
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 substances are responsible for accelerating chemical reactions in cells?
The substances which cause chemical reactions in a cell are protein catalysts called enzymes. Some cause reactions that would otherwise not occur and others speed reactions up. Carbon dioxide dissolves in water by itself but since this a dangerous substance to have in cells, there is a catalyst that dissolves it 300 times faster.
Are enzymes permanently changed in the chemical reactions they aer involved in?
No, enzymes are not permanently changed in the chemical reactions they are involved in. Enzymes are catalysts that facilitate chemical reactions by lowering the activation energy, and they remain unchanged after the reaction takes place. They can be used repeatedly in multiple 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.
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.
What is something that changes the rate of chemical reaction without itself being changed?
catalyst
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
