Chemistry - Chemical Reactions

Synthesis Reaction: two or more substances combine to produce another substance

General Equation for Synthesis: A + B --> AB

Hydration Reaction: addition of water

General Equation for Hydration: Salt + H2O --> Salt * H2O

Decomposition Reaction: a compound breaks down into two or more individual elements

General Equation for Decomposition: AB --> A + B

Dehydration Reaction: removal of water

General Equation for Dehydration: Salt * H2O --> Salt + H2O

Single Replacement Reaction: Single element switches with the corresponding ion in the compound

General Equation for Single Replacement: A + BC --> B + AC

Double Replacement Reaction: a chemical change that involves an exchange of positive ions between two compounds

General Equation for Double Replacement: AB + CD --> AD + CB

Neutralization Reaction: the reaction of an acid and a base to form a neutral solution of water and a salt

General Equation for Neutralization: Hx + yOH --> H2O + yx

Combustion Reaction: A chemical reaction where you start with an organic molecule and oxygen gas and products are always CO2 and H2O

General Equations for Combustion: CxHy + O2 --> CO2 + H2O

What is produced when sulphur is present in a combustion reaction?: SO2 What is produced when nitrogen is present in a combustion reaction?: NO2