2021-04-22 21:40 In chemistry, isomers are molecules or polyatomic ions with identical chemical formulas but distinct arrangements of atoms in space. Isomers do not necessarily share similar properties. Two main forms of isomerism are structural isomerism (or constit ... дальше
2020-12-21 20:32 In chemistry, isomers are molecules or polyatomic ions with identical chemical formulas but distinct arrangements of atoms in space. Isomers do not necessarily share similar properties. Two main forms of isomerism are structural isomerism (or constit ... дальше