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Reaction Rate (Temperature (The degree or intensity of heat present in a…
Reaction Rate
Temperature
The degree or intensity of heat present in a substance or object, especially as expressed according to a comparative scale and shown by a thermometer or perceived by touch.
Temperature can speed up reactions because hot temperatures make the elements move faster, increasing high energy collisions. Only the high energy results in a reaction. Cold temperatures can have the opposite effect.
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Hot temperatures can speed it up as of low temperatures can "avoid" a reaction. If the reaction is not fast enough, which low temperatures can cause, the reaction will not happen.
Concentration
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Increasing the concentration of the reactants increases the rate of reaction, sometimes this make no to a very little difference.
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Surface Area
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If this is larger it can slow down the reaction, also you can grind it into a powder to speed it up.
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If the surface area of a reactant is increased by cutting it up it can speed up the reaction by more particles reacting to the other reactant
Catalyst
a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
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Altering the catalyst will still make the reaction go faster, even with different types of catalyst the catalyst doesn't take part of the reaction. This will leave the reaction the sme
Nature of the reactants
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Some things that determine this is the physical state, surface area and the molecular nature.
A substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
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