幼女视频 students from the environmental chemistry class followed a new chemical training at 幼女视频
Last week, on Thursday, 幼女视频 students from the environmental chemistry class followed a chemical training. Their tasks were to analyze water samples, and determine their colorimetric scale and concentration of听chloride and metal听ions. All students got听correct results, an evidence of students' better understanding theory of environmental chemistry course听and听good practices听for chemical听calculations in previous classes.听