A catalyst is a substance that initiates or accelerates a reaction. The catalyst will vary depending on the reaction so it is not possible to give a definitive answer to the question.
Catalysts are used to speed up 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.
A catalyst is used to SPEED up a reaction but doesn't change itself.
A catalyst is a substance that speeds up a chemical reaction by providing an alternative reaction pathway with lower activation energy. The catalyst itself is not consumed in the reaction and remains unchanged at the end.
Anything that is added to a chemical reaction that's intended to speed up the reaction - is a catalyst.
they speed up a reaction
A catalyst
It is true that a catalyst is used in chemical reactions to help speed up the reaction by reducing activation energy.
a catalyst is a chemical used to speed up a reaction without being 'used up'
Because catalyst will reduce the activation energy of the reaction, thereby the speed of the reaction increases.
A catalyst can speed up a chemical reaction.
Phosphoric acid is used in the synthesis of aspirin as a catalyst to facilitate the esterification reaction between salicylic acid and acetic anhydride. It helps increase the reaction rate and yield of aspirin.