A(n) reaction occurs when ionic or covalent bonds are broken and elements, ions, or simpler molecules are formed. a. reversible b. decomposition c. exchange

The correct answer is B. A(n) decomposition reaction occurs when ionic or covalent bonds are broken and elements, ions, or simpler molecules are formed.

Explanation:

The decomposition reaction can be described as a type of chemical reaction in which a product is broken down to yield simpler molecules or atoms. Energy is needed for a decomposition reaction to occur.

For example, a decomposition reaction occurs when a molecule of water is broken down to yield two hydrogens and an oxygen atom. The covalent bonds used to form water are broken down during the decomposition reaction.

the transfer of energy between two molecules spaced just nanometers apart plays a key role in many technologies, including photovoltaics, quantum information systems, lighting, and sensors, as well as in biophysics to measure nanometer distances and in photosynthesis. but an open question in this area is what effect, if any, the surrounding photonic environment has on this nanoscale energy transfer. by designing and performing a carefully controlled experiment to answer this question, scientists have settled the debate and found clues to improving the efficiency of many of the technologies that rely on this process.

explanation:

ionic bonds are two oppositely charged ions that attract. a sodium ion has a 1 positive charge; a chloride ion has a 1 negative charge. sodium and chloride have oppostive charged ions that attract which forms an ionic bond. a chemical bond formed when two atoms share electrons is called