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.Know More
Another example of an everyday chemical reaction is the digestion of food in the stomach. In this case, the acid in the stomach reacts with the proteins, fats and other molecules contained within the food and breaks them down into more manageable parts. Some of these molecules are bonded and dispersed throughout the body via the blood stream, while others go to the intestines where they are fermented by bacteria. Fermentation consists of a series of chemical reactions.
There are two main types of fermentation: lactic acid fermentation and ethanol fermentation. The names refer to the end product, but they both start with the same reactant, glucose. Bacteria consume the glucose and form the by-product. Lactic acid fermentation can also start with lactose, which is found in milk, and is used to create yogurt. This sugar is then broken down in the presence of water to form glucose, another everyday chemical reaction. The bacteria utilize the glucose, excreting lactic acid.Learn More
Plutonium naturally forms in the heart of a star undergoing supernova, along with virtually all of the heavy elements in the universe. It is not found on Earth due to its instability. The most stable isotope of naturally occurring plutonium has a half-life of only 82,000,000 years and is exhausted well before it can be taken up in planetary formation. However, humans have been able to artificially create plutonium.Full Answer >
Workers involved in the manufacturing and production of polyurethane are at the greatest risk of being exposed to the effects of the chemical. Polyurethane is made from a reaction of polyol with diisocyanates or polymeric isocyanate. Diisocyanates can cause allergic reactions and irritations to the skin, nose, throat and eyes.Full Answer >
An element is a description of a type of atom, so a single atom is representative of an element but not an element itself. "An atom" refers to a physical entity; "an element" refers to a type of atom.Full Answer >
Gas comes from crude oil. The remains of organisms that lived on Earth hundreds of millions of years ago were eventually covered with sediment and rock. The pressure and heat of the Earth caused the remains and sediment to combine and create liquid hydrocarbon, or crude oil.Full Answer >