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某同学对蜡烛及其燃烧进行了如下探究．请填写下列空格1取一支蜡烛用小刀切下一小块把它放入水中蜡烛浮在水面上．结论石蜡的物理性质� Template






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sketch 4511 Yao Ming by Betty Marie Melzer
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sketch 3222 Late happy valentine&#;s from Tiffa Hidalgo Jordan Coquet

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tomski某同学对蜡烛及其燃烧进行了如下探究．请填写下列空格1取一支蜡烛用小刀切下一小块把它放入水中蜡烛浮在水面上．结论石蜡的物理性质� coloring
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几位同学对蜡烛燃烧火焰的焰心进行了以下探究，请你完成其中的一些步骤：（1）点燃蜡烛，将一根小木条迅速平放入火焰中，约1s后取出．现象如图A sketch template
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某同学对蜡烛及其燃烧进行了如下探究请填写下列空格 1取一枝蜡烛用小刀切下一小块把它放入水中蜡烛浮在水面上结论石蜡的密度比水 sketch template
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化学兴趣小组的同学对蜡烛的燃烧进行了如下探究．1丽丽点燃蜡烛观察到火焰分为外焰内焰焰心三层．如图把一根火柴梗放在火焰中约1s后 sketch template
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对蜡烛及其燃烧的探究 实验报 范文118 sketch template
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蜡烛燃烧产物探究探究实验探究第2页 大山谷图库 sketch template
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某同学对蜡烛的燃烧进行探究点燃一支蜡烛用一只烧杯倒扣在燃着的蜡烛上蜡烛燃烧片刻后熄灭如实验一．再点燃蜡烛然后吹灭看到烛芯产生 sketch template
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几位同学对蜡烛燃烧火焰的焰心进行了以下探究．请你完成其中的 些步骤1点燃蜡烛将一根小木条迅速平放入火焰中约1s后取出现象如右图A sketch template
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九年级化学课本实验总结 知乎 sketch template
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某同学对蜡烛及其燃烧进行了如下探究．请填写下列空格1取一支蜡烛用小刀切下一小块把它放入水中蜡烛浮在水面上．结论石蜡的物理性质 sketch template
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化学兴趣小组的小明小刚小军等三位同学对蜡烛燃烧进行了如下探究探究一蜡烛火焰哪一部分温度最高．小明同学点燃一支蜡烛仔细观察蜡烛火焰的 sketch template
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小颖和小卓在课堂上对蜡烛燃烧的观察与探究感到意犹未尽回家后通过家庭小实验继续对蜡烛燃烧的火焰焰心进行了深入探究请你一起参与．1知识准备 sketch template
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下面所示是某校化学兴趣小组的同学探究物质燃烧条件的实验过程 实验1在酒精灯上点燃木条和玻璃棒 实验2分别点燃两支小蜡烛将其中一支蜡烛 sketch template
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某同学对蜡烛及其燃烧进行了如下探究．请填写下列空格1取一枝蜡烛用小刀切下一小块把它放入水中蜡烛浮在水面上．结论石蜡的密度比水 sketch template
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百度教育 sketch template
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几位同学对蜡烛燃烧火焰的焰心进行了如下探究请你完成其中的步骤 1点燃蜡烛将一根小木条迅速平放入火焰中约1s后取出现象如图B所示 sketch template
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几名同学对蜡烛燃烧火焰的焰心进行了以下探究请你完成其中的一些步骤．1点燃蜡烛将一根小木条迅速平放入火焰中约1s后取出现象如图A所示 sketch template
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对蜡烛及其燃烧的探究1填表 实验步骤 实验现象 实验结论 取一小块蜡烛用小刀切下一小块把它放入水中 石蜡 石蜡的密度比水的 点燃蜡烛把 sketch template
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某同学对蜡烛及其燃烧进行如下探究请你填写下列空格 1蜡烛是由 和 组成的蜡烛的颜色是 形状 硬度较 气是 蜡烛不溶于水 sketch template
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某同学对蜡烛及其燃烧进行了探究．点燃蜡烛取一根火柴迅速平放在火焰上1s后取出最外层处先变被碳化说明 温度最高．在火焰上方罩一个冷而 sketch template
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化学兴趣小组的小明小刚小军等三位同学对蜡烛燃烧进行了如下探究探究一蜡烛火焰哪一部分温度最高．小明同学点燃一支蜡烛仔细观察蜡烛火焰的 sketch template
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题目某兴趣小组对“蜡烛燃烧的产物 进行探究查阅资料蜡烛的主要成分是石蜡石蜡由碳氢两种元素组成作出猜想蜡烛燃烧的产物是 sketch template
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某同学对蜡烛及其燃烧进行了探究．按要求填写下列实验现象及其结论．探究步骤对实验的观察和描述点燃前切一小块石蜡放入水中观察到的现象 燃着时 点燃 sketch template
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对蜡烛及其燃烧的研究．1点燃前观察蜡烛的颜色状态形状和硬度并嗅气从蜡烛上切下一块石蜡把它放入水中观察它是不是溶于水是浮在 sketch template
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兴趣小组对蜡烛燃烧实验进行了如下深入探究，请跟随小组一起来完成吧。 sketch template
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某同学对蜡烛及其燃烧进行了如下探究．请填写下列空格．取一支蜡烛用小刀切下一小块把它放入水中蜡烛浮在水面上．结论石蜡的密度比水 ． sketch template
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某同学对蜡烛及其燃烧进行如下探究．请填写下列空格1取一支蜡烛用小刀切下一小块把它放入水中蜡烛浮在水面上．结论石蜡的密度比水小小 sketch template
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已知硫酸铵的化学式为 NH4 2SO41NH4 2SO4的相对分子质量为 2氮元素和氧元素的质量比 3氮元素的质量分数 sketch template
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化学兴趣小组的同学对蜡烛及其燃烧进行了如下探究．1他们取一支蜡烛用小刀切下一小块把它放入水中蜡烛浮在水面上．结论石蜡的密度比水小 sketch template
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17．化学兴趣小组三位同学对蜡烛及其燃烧进行了如下探究 贝贝取一支蜡烛用小刀切下一小块把它放入水中蜡烛浮在水面上这说明石蜡难溶于水 sketch template
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化学兴趣小组的三位同学对蜡烛及其燃烧进行了如下探究．1贝贝取一支蜡烛用小刀切下一小块把它放入水中蜡烛浮在水面上．结论石蜡的密度比水 sketch template
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