Question

The reaction was slowed by the addition of an antag

What is most likely the definition of antagonist?
OA. A chemical to slow down a chemical reaction
OB. A chemical that is removed by a chemical reaction
OC. A chemical that is added to a chemical reaction
OD. A chemical to speed up a chemical reaction

Answer 1

An antagonist is a chemical that slows down a chemical reaction by inhibiting or blocking the action of a catalyst or reactant.

Step-by-step explanation:

An antagonist refers to a chemical that slows down a chemical reaction. It works by inhibiting or blocking the action of a catalyst or reactant, reducing the rate at which the reaction occurs.

For example, in the context of enzyme-catalyzed reactions, an antagonist can bind to the active site of the enzyme, preventing the substrate from binding and impeding the reaction.

This is different from a chemical that is added to a reaction (option C) or one that speeds up a reaction (option D). Option B refers to a chemical that is completely consumed or transformed in a reaction, which is not the case for an antagonist.

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