Three groups of drugs are used to reduce the stickiness of platelets, thus preventing platelets from clumping together to form platelet plugs. The anti-platelet drugs are most effective in preventing abnormal blood clots from forming in arteries (as opposed to veins). Aspirin and dipyridamoleâ (Aggrenox).
In order to react, colliding molecules must have a total kinetic energy equal to or greater than some minimum value [Figure 14.13(b)]. The minimum energy required to initiate a chemical reaction is called the activation energy, Ea. The value of Ea varies from reaction to reaction.
Show transcribed image text Which definition best describes the term activation energy? the energy of motion the minimum kinetic energy that particles must possess for a chemical reaction to occur the energy required to remove an electron from a gaseous atom the energy required to separate ions in a crystalline solid. 100% (6 ratings) OR.