A chemical reaction is a process in which one or more substances referred to as reactants are converted into one or more substances referred to as products.
A chemical reaction can be defined as a chemical process that gives as a result one or more substances referred to as products of that reaction.
A chemical reaction is catalyzed by specific proteins called enzymes, which are capable of lowering the activation energy of a chemical reaction.
The most common types of chemical reactions include decomposition, synthesis, single and double replacement.
In conclusion, a chemical reaction is a process in which one or more substances referred to as reactants are converted into one or more substances referred to as products.