Answer
Electrochemical dualism, as articulated by Jöns Jacob Berzelius through his electrochemical research, suggests that chemical compounds consist of electrically opposite components. This concept, rooted in the early 19th century, laid the foundation for understanding the fundamental principles of electrochemistry and paved the way for significant advancements in the field. Berzelius' work played a crucial role in shaping our comprehension of chemical bonding and the interactions between charged species.