STUDENTS’ CONCEPTIONS, TROUBLESOME KNOWLEDGE, AND THRESHOLD CONCEPT OF CATALYST EFFECT ON REACTION RATE: STUDENTS’ CONCEPTIONS, TROUBLESOME KNOWLEDGE, AND THRESHOLD CONCEPT OF CATALYST EFFECT ON REACTION RATE. Jurnal Pengajaran Matematika dan Ilmu Pengetahuan Alam, [S. l.], v. 27, n. 1, p. 1–8, 2022. DOI: 10.18269/jpmipa.v27i1.49957. Disponível em: https://ejournal-science.upi.edu/jpmipa/article/view/811. Acesso em: 1 jul. 2026.