京东 11.11 红包
The electrolysis of water电解水
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Pond water under a microscope
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Diffusion of potassium manganate in water
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Lime water turns milky
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The reaction of magnesium with hot water (use universal indicator)
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Calcium hydroxide + Carbon dioxide
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Expand on heating and contract on cooling热胀冷缩
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The reactions of metals with acids
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乙醇与酸性高锰酸钾的反应
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Metal Displacement reaction — iron + copper sulfate
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Gold + Copper sulfate
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Making soap
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钠与水的反应（两种指示剂：酚酞与通用指示剂）
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滴定Titration
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鸡蛋壳与稀盐酸的反应
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钠与水的反应
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铁钉锈蚀条件探究
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Testing aqueous cations using aqueous ammonia（II）
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Testing aqueous cations using aqueous ammonia
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Testing aqueous cations using sodium hydroxide
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Testing aqueous cations using aqueous sodium hydroxide (II）
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Testing halide ions
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碘化钾和双氧水的反应
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Testing ammonium ions
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How do fish sleep?
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黑色的鱼儿去哪了？
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咩咩咩
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制作奶茶 Making milk tea
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What is it?
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A ball dropping into the conical flask锥形瓶吞球
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电解饱和氯化钠溶液
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Dissection of chicken wings解剖鸡翅膀
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Testing sulfate and sulfite ions
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Testing nitrate ions
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Evaporation of copper sulfate solution
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Testing carbonate ions
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猪猪日记（2）-黑猪？白猪？
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Diffusion
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Separating plum syrup by simple distillation简单蒸馏分离酸梅汤
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Gas pressure