The anteroposterior full-spine films (Fig. 6.38) exhibit several lateral flexion-type subluxations (C-3) and a rotational type at the level of L5 (C-4). This patient presented with a history of acute pain in the left lateral rib cage about the level of the 3rd and 4th ribs.
paper burning is a chemical change. technically any chemical change is also a physical change, but not every physical change is a chemical change. It is a chemical change. When you burn paper, you see smoke and ash being formed, indicating a chemical change.
Report Abuse. Combustion or burning is a complex sequence of exothermic chemical reactions between a fuel and an oxidant accompanied by the production of heat or both heat and light in the form of either a glow or flames.hemical changes, or chemical reactions, are changes that result in the production of another substance. When you burn a log in a fireplace, you are carrying out a chemical reaction that releases carbon.