Colors from the Perspective of a Chemistry Teacher

Abstract

Color reactions, or chemical reactions where colors are changed, are often used in chemistry teaching. Chemical reactions that take place with a color change are more attractive to students and increase their attention. And from the students’ point of view, the change of color proves that a chemical reaction is taking place. In the teaching of chemistry, we encounter a number of color reactions, such as carbohydrate evidence reactions, analytical reactions using the formation of a precipitation or a change in the color of indicators in acid-base reactions, or color reactions of natural substances. The work is focused on the perception of colors and their change in connection with chemical reactions and changes in the structure of compounds.