A panic attack is an exaggeration of your bodyâs normal response to fear, stress or excitement. It is the rapid build-up of overwhelming physical sensations, such as: 1  a pounding heartbeat. 2  feeling faint. 3  sweating. 4  nausea (feeling sick).
Since four elements must be present for the combustion process to occur (fuel, heat, an oxidizing agent, and a chemical chain reaction), a fire can be extinguished by removing any one of these four elements.
A Combustion Reaction ï® ... is a reaction in which oxygen reacts with another element or compound (generally a hydrocarbon) to produce energygy g in the form of heat and light. ï® An example might be the combustion of methanolof methanol, www.chem.uiuc.edu/clcwebsite/meth.html Copyright Â© 2010 Intel Corporation.