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Umar Kalmar Nizar

Umar Kalmar Nizar

Universitas Negeri Padang - Padang / Indonesia
Natural Sciences / Chemical Sciences
AD Scientific Index ID: 5712222
Padang State University
person_outline Umar Kalmar Nizar's MOST POPULAR ARTICLES
1-) THE CHARACTERIZATION STUDY OF FERRITES (MAGNESIUM AND MANGANESE) USING SOL GEL METHOD The Malaysian Journal of Analytical Sciences 18 (3), 485 - 490, 2014
2-) A new way to control the coordination of titanium (IV) in the sol–gel synthesis of broom fibers-like mesoporous alkyl silica–titania catalyst through addition of water Chemical Engineering Journal 222, 23-31, 2013
3-) Three Levels of Chemical Representation-Integrated and Structured Inquiry-Based Reaction Rate Module: Its Effect on Students' Mental Models. Journal of Turkish Science Education 19 (3), 758-772, 2022
4-) Development of student worksheet based on guided inquiry with class activity and laboratory in thermochemistry material International Conferences on Educational, Social Sciences and Technology …, 2018
5-) Preparasi Karbon Aktif dari Limbah Pelepah Kelapa Sawit dengan Aktivasi Ultrasonik sebagai Adsorben Rhodamin B Chemistry Journal of Universitas Negeri Padang 10 (2), 59-63, 2021