Its oil becomes soap: a teaching sequence for teaching Environmental Chemistry in technical professional education at mid-level. Research, Society and Development, [S. l.], v. 10, n. 11, p. e197101119115, 2021. DOI: 10.33448/rsd-v10i11.19115. Disponível em: https://rsdjournal.org/rsd/article/view/19115. Acesso em: 5 dec. 2025.