Nowadays, Hydrogen is the most promising candidate for clean and sustainable energy. The calorific value of its combustion reaches 286 kJ/mol, at the same weight, the energy of hydrogen is three ti…
This study aims to produce a product in the form of green chemistry-based practical instructions for pH indicator materials that meet the valid, practical and effective criteria. The development mo…
This research is a research on developing higher-order thinking-based questions that aims to produce chemistry questions in the form of descriptions for class XI SMA/MA on ion balance material and …