1985年四月在里加举行了全苏第十九届中学化学竞赛的决赛。这个阶段的试题要求参加者有广博的知识,非凡的理解力,善于在特殊情况下应用所获得的知识。它包含定性和计算试题(八年级6个试题,九和十年级8个试题),课外竞赛题(这些问题的资料主要与化学课外读物和其边沿科学有关,选自近几年来出版的普及读物),中学基础课程和实 In April 1985, the final of the 19th Middle School Chemistry Competition was held in Riga. The questions in this stage require the participants to have extensive knowledge, extraordinary understanding, and good at applying the acquired knowledge in special situations. It contains qualitative and computational test questions (6 questions in grade 8, 6 questions in grades 9 and 10), extracurricular competition questions (these questions are mainly related to extracurricular readings and their marginal science, and are selected from popular readings published in recent years. ), Middle School Basic Course and Actual