Chemical Reaction


What You Need:


A chemical reaction is a process in which one substance is chemically converted to another. All chemical reactions involve the formation or destruction of bonds between atoms. Most chemical reactions give off heat. What Do You See? You will notice a change in the temperature in the jar. Temp 2 will be higher than Temp 1.he vinegar reacts with the protective coating on the steel wool. This allows the iron in the steel to rust. Rusting is a slow combination of iron with oxygen. When this happens, heat energy is released. The heat released by the rusting of the iron causes the mercury in the thermometer to expand and rise. This is the simplest chemical reaction to perform.