This class of compounds/elements are called inhibitors.
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
This is called reaction rate.
a catalyst
It is a catalyst.
A substance that speeds up a chemical reaction is known as a CATALYST.
catalyst
They are called catalysts.
Catalyst: a substance which promote and help a chemical reaction. Inhibitor: a substance which greatly reduces the rate of a chemical reaction.
It is called a catalyst.
a catalyst
An inhibitor decreases the reaction rate
A catalyst is a substance that speeds up the rate of a chemical reaction without changing the substance. It does this by reducing the minimal reaction energy. A catalyst is not used up in a reaction therefore they last indefinitely.