Chemical reactions that produce heat are called exothermic reactions. Exothermic reactions involve physical or chemical changes that generate heat in various quantities, which is then dispersed into the surrounding environment. Exothermic reactions come in several forms, and require more energy to occur than they produce.Know More
Exothermic reactions take place throughout the world and may occur in the water, land, and in the atmosphere. Examples of exothermic reactions include combustion reactions of fuels, the addition of concentrated acid to water (also called neutralization), the burning of certain substances, and the addition of water to anhydrous copper sulfate. Most exothermic reactions take place when triggered by an external catalyst, although some come from internally produced sources of heat, such as the eruption of volcanoes.
The reaction that occurs when metals oxidize and corrode is another type of an exothermic reaction, as respiration and even the decomposition of decaying plant and food matter into compost or humus. Some exothermic reactions, such as the combustion of fuels in car and plane engines, take place through mechanical means. Others, such as the decomposition of vegetable matter to waste, occur solely through natural forces. Exothermic reactions are the opposite of endothermic reactions, which result in systems absorbing heat energy from their surroundings.Learn more about Science
All chemical reactions have a conservation of mass. The law of conservation of mass states that atoms cannot be created nor destroyed in a chemical reaction. This discovery, made by Antoine Lavoisier in1789, is the basic foundation for modern chemistry.Full Answer >
There are several components, including catalysts, heat and pressure, that when added to chemicals and chemical reactions incite or speed up the reaction process. One of the most helpful biological additives in chemical reactions are enzymes.Full Answer >
Five chemical reactions that can be done at home are an erupting volcano, melting a foam cup with acetone, pouring vinegar on rocks to test for calcium carbonate, destructing black ink and rusting steel wool. These little experiments are simple and use common household products.Full Answer >
The reaction between baking powder and an acid is an example of an everyday chemical reaction. As bread bakes, the reaction releases carbon dioxide, which is then trapped in the structure of the cooked dough to make it light and fluffy.Full Answer >