There are at least two major approaches to understanding cognitive change during adolescence. One is the constructivist view of cognitive development. Based on the work of Piaget, it takes a quantitative, state-theory approach, hypothesizing that adolescents' cognitive improvement is relatively sudden and drastic.
Atoms bond to form molecules. Two or more atoms may bond with each other to form a molecule. When two hydrogens and an oxygen share electrons via covalent bonds, a water molecule is formed. Chemical reactions occur when two or more atoms bond together to form molecules or when bonded atoms are broken apart. Describe the properties of chemical reactions and compounds. Atoms form chemical bonds with other atoms thereby obtaining the electrons they need to attain a stable electron configuration.
Chemical reactions occur when a particular part of one element or molecule meets a particular part of another element or molecule.The reaction works similar to putting a key in a lock. elements and molecules move much faster at high temperatures than they do at slower temperatures.When they move faster, they bounce into each other many more times. Thus, they have many more opportunities to hit the spot where the chemical reaction will occur.lements and molecules move much faster at high temperatures than they do at slower temperatures. When they move faster, they bounce into each other many more times. Thus, they have many more opportunities to hit the spot where the chemical reaction will occur.