Widarti, H.R., Amalia, E.R.F. and Rokhim, D.A. 2025. Enhancing student motivation in reaction rate topics through the integration of Instagram-based learning media and the Student Teams-Achievement Divisions cooperative model. Eclética Química. 50, (Apr. 2025), e–1538. DOI:https://doi.org/10.26850/1678-4618.eq.v50.2025.e1538.