This research aimed to prove that laboratory activity based inquiry could improve scientific literacy skills of high school student, namely content, context, process, and science attitude aspect in a voltaic cell lesson. The research design used in this research was counterbalanced design. This research used scientific literacy based inquiry instruction for experiment class and inquiry based instruction for control class. Scientific literacy test, enquette, observation sheet, and interview guide were used as instruments in the research, while student worksheet was used as guidance of instruction.
The purpose of this study was to investigate influences of temperature on the conversion of ammonium tungstate pentahydrate (ATP)
to yellowish green). The relationships between the reaction temperatures and the physicochemical properties of the ATP were also investigated in detail along with the theoretical consideration and the proposal of the WO 3 particle formation mechanism. In simplification, the phenomena can be described into three zones of temperatures: (1) Below 250 °C (release of water molecules and some ammonium ions); (2) At 250-400 °C (release of water molecules and ammonium ions, restructurization of tungsten and oxygen elements, and formation of amorphous tungsten trioxide); and (3) At higher than 400 °C (crystallization of tungsten trioxide
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