enzymes
The primary factor that determines which substance is most responsible for chemical reactions is the reactivity of the substances involved.
The substances which cause chemical reactions in a cell are protein catalysts called enzymes. Some cause reactions that would otherwise not occur and others speed reactions up. Carbon dioxide dissolves in water by itself but since this a dangerous substance to have in cells, there is a catalyst that dissolves it 300 times faster.
The electrons in an atom are primarily responsible for chemical reactions.
The chemical responsible for triggering allergic reactions in the body is called histamine.
Reactions can be both chemical and physical. Chemical reactions involve breaking and forming chemical bonds leading to the formation of new substances. Physical reactions involve changes in state, shape, or form of a substance without changing its chemical composition.
These substances are called catalysts.
Produt!(:
Catalyst.
chemical reactions
enthalpy
catalyst
a substance that is formed in a chemical reaction is called a product=)After a chemical reaction, new chemicals are formed. For an example:-NaOH + HCl = NaCl + HOH(H2O)Chemical substances are formed in chemical reactions.