元素化合物知识是初中化学知识的一骨架”和基础，但这部分知识多而杂，往往易懂难记。现就其复习方法提几点建议，供同学们参考。一、突出重点，掌握规律复习元素化合物知识要突出重点，掌握规律。依据教材调整后的要求，复习重点应是氧气、氢气、碳和碳的主要化合物、铁以及 The knowledge of elemental compounds is a skeleton and foundation for junior high school chemistry knowledge, but this part of the knowledge is complex and often misunderstood. Now, there are some suggestions for the review methods for students to refer to. 1. Focus and rules In order to review the knowledge of elemental compounds, it is necessary to highlight the key points and master the laws, and in accordance with the requirements after the adjustment of teaching materials, the review should focus on oxygen, hydrogen, the main compounds of carbon and carbon, iron, and