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Many chemical reactions can be sped up by raising the ambient temperature.
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∙ 12y ago
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∙ 13y agoby heat.
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How does adding a catalyst to reaction affect it?
Provided the catalyst is appropriate for the reaction, it will accelerate the reaction. In other words, the reaction will reach equilibrium between reactants and products faster than it would otherwise have done. The catalyst is unchanged, i.e. at the end of the reaction it is in the same chemical state that it was in at the start. In living systems, the catalysts are made by cells and are called enzymes.
How is a catalyst represented in a chemical reaction?
You mean in a chemical equation? There it is always written over the arrow. Like so: .........electricity 2H2O------------>H2+O2
How does a catalyst speed up a reaction at low tempertures?
A catalysts speed up the rate of reaction by providing an alternate pathway which has a lower energy of activation than the normal pathway.
How is the rate of a reaction influenced by a catalyst?
The rate of reaction often increases when catalysts are added. Catalysts can either lower the activation energy required for the reaction to happen, so that means more molecules will have enough energy to react than if the activation energy were higher. Catalysts can also be like substrates that act as a site for holding the molecules in the correct position to react. Always remember that molecules need to collide in the correct position with enough energy in order to react, and so catalysts will aid these two requirements and increase the reaction rate. There are catalysts that slow the reaction, but it's not common.
Which substance can affect the rate of a chemical reaction without itself being changed or used up during the reaction?
The answer you're looking for is a "catalyst". Unless you are in Chemistry 12, you don't need to know that reaction equations with more than 3 molecules on the reactants' side consist of several steps, in which intermediates (things that are produced/used and involved in the reaction, but are reused or produced before the end) like catalysts come into the reaction. Catalysts influence reaction rate, but do not show up in the final equation of an overall reaction. They are sometimes listed over the "arrow" in the equation. Inhibitors slow reactions, and are the opposite of catalysts in that way. Source - Chem 12 Student under Jim Nattrass
What is Catalyst for chemical reaction?
A catalyst can improve the reaction rate or allows the realization of a chemical reaction with an energy lower than the activation energy.
How does adding a catalyst to reaction affect it?
Provided the catalyst is appropriate for the reaction, it will accelerate the reaction. In other words, the reaction will reach equilibrium between reactants and products faster than it would otherwise have done. The catalyst is unchanged, i.e. at the end of the reaction it is in the same chemical state that it was in at the start. In living systems, the catalysts are made by cells and are called enzymes.
What accelerates any chemical reaction but is not consumed in the reaction?
A catalyst. There are two types of catalyst: * Homogenous: a catalyst in the same state (i.e. solid, liquid, gas) as the reactants. * Heterogenous: a catalyst in a different state than the reactants
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
How do catalyst affect a chemical reaction?
Adding a catalyst will make the reaction happen faster because the catalyst makes the Activation Energy (the energy required for the reaction to take place) to lower. Meaning more molecules can acquire this lower number of energy. A chemical reaction that involves a catalyst is a special type. A catalyst, in a given chemical reaction, is something that is both an input *and* an output of the reaction equation. What that means, practically, is that a small amount of catalyst is enough to process any amount of the other inputs. (More catalyst means that a given amount will be processed faster.)
Can function to speed up chemical reactions?
A catalyst functions to speed up a chemical reaction without being used up in the reaction, meaning that a catalyst can be used more than once.
What is a Catalyst mean in chemistry?
In Biology, a catalyst is a substance which speeds up a chemical reaction, without being changed themselves. Biological catalysts are found in living organisms.
How is a catalyst represented in a chemical reaction?
You mean in a chemical equation? There it is always written over the arrow. Like so: .........electricity 2H2O------------>H2+O2
A substance that enables a chemical reaction to proceed under the different conditions than otherwise possible?
Catalyst
What is a precatalyst?
A precatalyst is something that is going to be converted in a catalyst later in the reaction. Precatalysts are easier to store than catalysts.
How does a catalyst speed up a reaction at low tempertures?
A catalysts speed up the rate of reaction by providing an alternate pathway which has a lower energy of activation than the normal pathway.
How is the rate of a reaction influenced by a catalyst?
The rate of reaction often increases when catalysts are added. Catalysts can either lower the activation energy required for the reaction to happen, so that means more molecules will have enough energy to react than if the activation energy were higher. Catalysts can also be like substrates that act as a site for holding the molecules in the correct position to react. Always remember that molecules need to collide in the correct position with enough energy in order to react, and so catalysts will aid these two requirements and increase the reaction rate. There are catalysts that slow the reaction, but it's not common.
