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2019年高中化学人教版基础巩固提升必修2课件:第二章 系统总结

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第二章化学反应与能量实验步骤将锌片和铜片用导线连接(导线中间接入一个电流计)..第二章化学反应与能量实验步骤将锌片和铜片用导线连接(导线中间接入一个电流计),平行插入盛有稀硫酸的烧杯中,观察现象实验1:把一块锌片和一块铜片分别插入盛有稀硫酸的烧杯里,观察实验现象实验2:把一块锌片和一块铜片同时插入盛有稀硫酸的烧杯里,观察实验现2019年高中化学人教版基础巩固提升必修2课件:第二章系统总结

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