The number of biochemical reactions in the body is extremely great.
Metabolism
The entire cell and extra cellular matrix is subject to thousands of chemical reactions every second. These chemical reactions produce all of our energy, or movements, thoughts EVERYTHING that occurs in the body.
Yes, reversible chemical reactions exist.
Chemical reactions helps life to go on,in that it helps the process of metabolism within cells of living things.
When body temperature drops below normal, chemical reactions can slow down rather than speed up. Enzymes, which catalyze these reactions, may become less effective at low temperatures. Proteins can also denature or become inactive at extreme temperatures, leading to potential breakdown.
After chemical reactions new substances are obtained.
Sleeping is a natural process that allows the body and brain to rest and restore energy. While there are chemical reactions happening in the body during sleep, sleeping itself is not considered a form of chemical energy.
Decomposition involves chemical reactions and as a rough approximation, for many chemical reactions happening at around room temperature, the rate of reaction doubles for every 10°C rise in temperature. The reason for this is that for chemical reactions to happen, at the smallest scale, the individual chemical molecules have to bump into one another. As molecules warm up they begin to vibrate more and the chances of them bumping in to one another increases - the more bumps that happen, the faster the reactions go.
Chemical energy is energy produced by chemical reactions. Burning gasoline is one example. The reactions of materials in a battery that produce electricy are another. There are many such examples. Mechanical energy is energy of a mechanical system, such as a motor or engine. Examples are the automobile, the electric motor. and so on. Converting chemical energy to mechanical energy is what makes a car go.
Fertilized eggs undergo a great many chemical reactions as they develop into chickens. Unfertilized eggs don't undergo chemical reactions until such time as they are either cooked and eaten, or go bad and are thrown away.
increasing concentrationincreasing temperaturesometimes increasing pressureadding a catalyst
there are various chemical and physical reactions that go on in the geosphere that is caused by the atmosphere.