化学平衡在近些年来的高考中备受命题者的青睐,这类题目相对其他考点的题难度较大,具有良好的区分度,选拔功能较强。其中,应用平衡移动原理判断平衡移动的方向、由此引起的反应 Chemical balance has been favored by propositioners in college entrance examinations in recent years. These topics are relatively difficult to compare with other test centers, have a good degree of distinction, and have strong selection functions. Among them, the principle of balance movement is used to determine the direction of balanced movement and the resulting response.