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00301.中学化学实验现象总结(国外英文资料)
00301.中学化学实验现象总结(国外英文资料)1, magnesium in air combustionA dazzling light, the release of large amounts of heat, while white smoke generated produces a white substance2, wood burning in oxygenEmit white light, heat3, sulfur combustion in oxygenA blue violet flame, bright heat, generating a pungent odor gas4, wire burning in oxygenCombustion, heat generation, Mars radiance, black solid materialAmmonium hydrogen carbonate, 5 heating tubeThe pungent gas generation, tube droplet generation6, the combustion of hydrogen in chlorine.A pale flame, produce a lot of heat, fog generation7, in vitro by hydrogen reduction of copper oxideThe black copper oxide into the red material, the tube of liquid droplets generated8, using charcoal powder reducing copper oxide powderThe black copper oxide into metal particles lustrous, limewater turbid9, carbon monoxide burning in the airA blue flame, heat10, Xiang Sheng has a small amount of potassium carbonate solid tube instillment hydrochloric acidGas generationCopper sulfate crystal 11, heating tubeBlue Crystal gradually turned into white powder, a tube mouth droplet formation12, burn in chlorine sodiumThe violent combustion generated white solid13, ignite pure hydrogen, with dry beaker on fire coverA light blue flame, beaker wall droplet formation14, to the nitrate silver solution solution containing Cl - adding nitric acid to theThere is a white precipitate is generated15, to the solution containing SO42 - adding barium chloride solution with nitric acid.There is a white precipitate is generated16, a rusty nail into the holding tube and heated dilute sulfuric acidRust gradually dissolved solution were yellow, and the gas generationIn 17, the copper sulfate solution adding sodium hydroxide solutionBlue floc formation18, in ferric chloride solution NaOH solutionA reddish brown precipitateIn 19, lime plus a small amount of waterThe violent reaction, a large amount of heat20, a clean nail immersed in copper sulfate solutionThe surface of nai
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