Rust. Rust is formed when iron and oxygen interact. When vinegar and baking soda react, they produce sodium acetate, carbon dioxide, and water. Things are catching fire or exploding. That's a chemical reaction.
Burning plastic. Carbon atoms in the plastic molecule are combining with oxygen molecules to form carbon dioxide molecules and heat energy. This process is called oxidation and is one reason plastics break down over time. Burning plastic wastes can pollute land surfaces with carbon particles that can be resuspended in air clouds or wash into surface water sources. However, plastic can also be recycled, so there is no need for it to be disposed of in landfill sites.
Trees and plants grow using photosynthesis. They use sunlight and water to make their own food. Trees and plants take in carbon dioxide during this process and release oxygen as a by-product. This is why trees and plants help clear the atmosphere. They help us breathe better.
Chemical reactions are involved in every day life. For example, when you drive on an asphalt road, oil from the ground helps make the road smooth and slippery. Oil companies extract oil from old tires and add chemicals to the oil to make it more stable and resistant to heat. This prevents oil from breaking down before it gets reused.
TOP TEN CHEMICAL REACTIONS YOU CAN DO AT HOME
The condensation of two amino acids to produce a peptide is a basic example. This process is the inverse of hydrolysis, which divides a chemical entity into two pieces by the action of the polar water molecule, which separates into hydroxide and hydrogen ions. The hydroxide ion attacks the carbon atom with three oxygen atoms attached, splitting it apart and leaving a new peptide bond between the carboxyl group of one amino acid and the nitrogen atom of the other.
Photosynthesis, rust, baking, digestion, combustion, chemical batteries, fermentation, and washing with soap and water are all examples of chemical processes in everyday life. Chemical reactions take place all around you, not just in science labs.
In photosynthesis, light energy is used to split water molecules into oxygen and hydrogen atoms plus electrons from the electron pool. The electrons from the electron pool are used by other substances in the plant cell to make their own nutrients. This process needs sunlight as well as carbon dioxide and water to work.
Rust forms when iron oxidizes in moist conditions. This happens whenever metal objects come in contact with moisture or soil particles (especially if they're organic). As iron oxidizes, it releases metal ions that bond together to form a protective layer over the original object. This process can be good or bad depending on what type of rust we're talking about. Green rust contains significant amounts of copper and iron compounds that help protect plants from iron toxicity. White rust has no beneficial effects on plants but does provide some protection against further oxidation. Brown rust has the same effect as white rust but only if you then wash the object with acid to remove any residual iron. That's why it's important to clean your metal equipment before storing it or putting it in water for long periods of time.
A chemical change is always accompanied by a chemical reaction. Examples of chemical transformations
Rotting, burning, frying, and rusting are all examples of chemical change since they result in the formation of wholly new chemical compounds. Burning wood, for example, produces ash, carbon dioxide, and water. When iron is exposed to water, it transforms into a complex combination of hydrated iron oxides and hydroxides. This process is known as oxidation-reduction or oxidizing-deoxidizing-reducing.
In chemistry, reduction is the conversion of substances that are mainly composed of hydrogen atoms (hydrogen compounds) into other substances with fewer hydrogen atoms. In general, this process occurs when you add electrons to the compound. Reduction can also be called depolymerization or decomposition because a large molecule breaks down into smaller molecules or elements. Electrons are supplied primarily by organic chemicals using enzymes or by metal powders.
Examples of reduction include the reduction of silver nitrate to silver or charcoal gasification. All metals are reduced at high temperatures in the presence of hydrogen or helium. Uranium ore is reduced with zinc dust in a furnace to produce uranium zink. Uranium zink is then processed further to produce uranium oxide for use in nuclear reactors.
Reductions may also occur between two or more substances that are not predominantly made up of hydrogen atoms. For example, iron filings reduce sodium chlorate to chlorine and oxygen. The resulting product is mostly salt and some unreacted iron filings.
Some reductions are important biological processes.