C.Kosky&L.Hensbee+Teaching+Reaction+Wiki

= = Types of Chemical Reactions



A chemical reaction is when atoms of the same or different elements reposition themselves to form a new substance. All chemical reactions involve a change in substances and a change in energy. Matter and energy may change in a chemical reaction but neither of them is destroyed during the process. Chemical reactions are classified into five different groups, synthesis, decomposition, single-displacement, double-displacement, and combustion. In a synthesis chemical reaction two types of molecules come together to form one. Where as in decomposition it seems like the opposite because here one type of molecule forms into two. A single-displacement chemical reaction is when a single uncombined element replaces another in a compound. When two compounds switch places to form two fresh compounds then the reaction is called a double-displacement. Anytime anything burns or the reaction involves molecular oxygen O2 the reaction is most likely a combustion reaction.

Below you will find links to learn more about each chemical reaction.

1. Synthesis 2. Decomposition 3. Single Displacement 4. Double Displacement 5. Combustion