A substance that slows or prevents a chemical reaction is called an inhibitor or a negative catalyst. It is the opposite of a catalyst, which is a substance that increases the rate of a reaction.
An example of an inhibitor is acetanilide. When it is added to hydrogen peroxide, it slows down the decomposition of the solution. Inhibitors are also used alongside catalysts, such as enzymes, to reduce their effectiveness. Poisons and some drugs can act as enzyme inhibitors. Enzyme inhibitors can be classified as specific or nonspecific. A specific inhibitor works on a single type of enzyme, and a nonspecific inhibitor has the same effect on all enzymes.Learn More
The molecules of one reactant are combined with those of another reactant to form a new substance during a chemical reaction. As the chemical bonds are broken, the positions of electrons change, resulting in a product with properties that are different from the properties of the reactants. Various temperatures and catalysts are needed for different chemical reactions to occur.Full Answer >
The chemical reaction for the burning of sugar by the body is shown through the chemical equation C12H22O11(s) + 12 O2(g) -----> 12 CO2(g) + 11 H2O(l). In this equation, C12H22O11 is the sugar, which burns by reacting with the oxygen to create carbon dioxide and water.Full Answer >
During a chemical reaction, atoms react with each other to form new products. Atomic bonds in reactants are broken and new ones are formed for creating new products.Full Answer >
There are a few telltale signs that can help indicate that a chemical reaction has taken place; these include the creation of one or more new substances and a noticeable energy change from the reaction site. However, telling whether a chemical reaction has actually taken place is not always very easy to observe.Full Answer >