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A substance by itself will not slow down a chemical reaction; factors require change, such as cooling the reactants or lowering the concentration, to do so. Adding another chemical or substance that happens to slow a reaction often does so by actually interfering with the reaction and replacing or preventing it outright, and there is not a name for chemicals that do this -?inhibitor?-, since a chemical may do this to one reaction, but be a catalyst to another.

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decrease surface area/ remove catalyst/ decrease temperature/ decrease concentration/ add inhibitor/ dilute reactants/ separate reactants/

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14y ago
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9y ago

Negative catalysts are substances which slows down chemical reactions.

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11y ago

They are called 'inhibitors'

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Q: What is the substance that slows down or stops a chemical reaction called?
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Related questions

What is the name of substance that slows reaction?

The substance that slows down a chemical reaction is an inhibitor. Instead you could also call an inhibitor an anticatalyst.-anticatalyst `antee'katlist1. (chemistry) a substance that retards a chemical reaction or diminishes the activity of a catalyst


What do you call a substance speeding up a chemical process?

if at the end of the chemical THAT substance is unchanged .That substance is a catalyst. If it slows donw the reaction, it is called an inhibitor.


What is a substance that slows down or stops a chemical reaction?

an inhibitor


What type of substance slows down chemical reaction?

Chemical reactions can be either sped up or slowed down by catalysts.


Why does a reaction slow down the time?

Usually:decreasing concentrationlowering the temperaturesometimes lowering pressureremoving any catalyst


What is a catayst?

In chemistry a catalyst is a substance which, when added to other substances, allows them to change while itself remaining unchanged.


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.


What is the name of a catalyst that slows a chemical reaction?

inhibitor


What is a material that slows down the rate of a chemical re action?

In general, a material that decreases the rate of a chemical reaction is called an inhibitor.


What does a catalyst do in a chemical reaction?

Reduces the activation energy of the reaction, which speeds up the progress of the reaction It increases the rate of a chemical reaction. However a true catalyst is not consumed in the reaction.


A what is a material that slows down the rate of a chemical reaction?

An inhibitor decreases the reaction rate


What is the material that slows down the rate of a chemical reaction?

negative catalyst.