科学探究是严谨而有趣的过程,请你一起参与有关催化剂的实验探究。提出问题有一天,小松同学用“双氧水”(过氧化氢溶液)清洗伤口时,不小心将过氧化氢溶液滴到水泥地板上,发现有大量气泡产生。小松联想到自己曾经用二氧化锰做分解过氧化氢的催化剂。他想,水泥块能否也可做过氧化氢分解的催化剂呢?于是他到附近建筑工地取回一些小水泥块,再用蒸馏水浸泡、冲洗、干燥,拿到学校和同学们一起进行了以下 Scientific inquiry is a rigorous and interesting process. Please join in the experimental exploration of the catalyst. Asking questions One day, when Komatsu’s class was using a “hydrogen peroxide solution” (hydrogen peroxide solution) to cleanse the wound, he accidentally dropped the hydrogen peroxide solution onto the concrete floor and found that a large number of bubbles were produced. Komatsu thought that he had used manganese dioxide as a catalyst for the decomposition of hydrogen peroxide. He wondered if the cement block could also be used as a catalyst for the decomposition of hydrogen peroxide. So he went to a nearby construction site to retrieve some small cement blocks, soaked in distilled water, washed and dried, and took the school and the students together to carry out the following