Adverse.
an allergic or negative reaction to a substance. Hahaha, I feel clever now :)
an allergic or negative reaction to a substance. Hahaha, I feel clever now :)
When negative and positive are mixed together, it is called a neutralization reaction. In this reaction, the positive ions from one substance combine with the negative ions from the other substance to form a product that is electrically neutral.
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The chemical change in which a substance becomes more negative could be the ionization of the substance. Means that the substance becomes more negatively charged and that is due to it being ionized. It tends to gain more electrons in order to fill its valence shell to become a stable substance.
The substances which increase the rate of a chemical reaction are called a Positive Catalyst whereas The substances which decrease the rate of a chemical reaction are called Negative Catalyst. Positive Catalyst decreases the Activation energy of reactant molecules whereas negative catalyst increases the Activation energy of the reactant molecules. Positive Catalyst is also called the Promoter whereas negative catalyst is also called Inhibitor.
A chemical reaction is a reaction in which a substance is turned into another completely different substance
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
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exothermic heat is negativeA different opinion:Heat itself cannot be negative. An exothermic reaction is a chemical reaction wherein a substance gives up heat. Since the substance is giving up energy in the form of heat, the enthalpy change of the substance is negative.
A product is a substance that is formed by a chemical reaction.
This substance is called the end-product of a chemical reaction.