2018年中考化学真题分类汇编4化学与社会发展考点21化学与环境3垃圾(无答案).doc

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1考点 21 化学与环境(18 嘉兴)16.绿水青山就是金山银山。2018 年嘉兴市全面推进生活垃圾分类工作,在城市居民小区内,将生活垃圾按图示分三类科学处置。居民常用的锌锰干电池,内含锌、碳、二氧化锰等物质。二氧化锰中锰元素的化合价为_。废旧锌锰干电池因含重金属元素不能随意丢弃,应将其放入_收集容器。

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