Why is bromine less reactive than chlorine? What type of chemical bond joins sodium (element 11) and chlorine (element 17)? Write the electronic configuration for Neon, Ne. Is Neon a stable atom or a reactive atom? Give an explanation for your answer. How do metals a...
Classify each of these elements as representative, transition, or inner transition; state whether each is a metal or a nonmetal; and give its normal phase: (a) nickel (b) magnesium (c) bromineAt first, the periodic table placed the elements...
It reacts neither with bromine water nor potassium permanganate solution . These two reagents , as we have seen , invariably react with aliphatic hydrocarbons having one or more double linkages . 中文解释(见上海科学技术出版社高二化学教学参考资料第二学期试用本18页)与苯的分析以及相对分子质量相符的...
..三壑星楚璧盒塞童董壁三苎里墨 摘要 香茅醇是具有甜美玫瑰花香气的香料,它用于皂用香精、化妆品香精以及食 品加香剂,具有较高的附加价值。 合成香茅醇的方法很多,目前香料工业上常用香茅醛还原或香叶醇加氢合成 香茅醇。本研究的课题是以二氢月桂烯为原料合成香茅醇,该方法在国内尚未见 报道。以二氢月桂烯...
n] K potassium [p?'t?si ?m] Ca calcium [ ? k?lsi ?m] Rb rubidium [ ru:'bidi ?m] Ba barium [ 'b? ?ri ?m Br bromine ['br?umi:n] I iodine [? ai?di:n] 其他常有元素 Fe : iron [ 'ai?n] Mn : manganese [? m??g?'ni:z] Cu: copper [? k? p?] 拉丁语: Cuprum...
15.Excesshydrochloricacidsolutionisaddedtoasolutionofpotassiumsulfite. 2HCl(aq)+K2SO3(aq) H2O(l)+SO2(g)+2KCl(aq) 2H++2Cl-+2K++SO32-H2O+SO2+2K++2Cl- 2H++SO32-H2O+SO2 16.Dilutesulfuricacidisaddedtoasolutionofbariumchloride. ...
phenolphthaleinTSnondiscolouring. Metal+salt+hydrogenacid,Zn+2HCl=ZnCl2+H2=Zn+H2SO4 =ZnSO4+H2= Alkalineoxide+acid+salt+waterFe2O3+6HCl=2FeCl3+3H2O, Fe2O3+3H2SO4=Fe2(SO4)3+3H2O Alkali+acid+salt+water,NaOH+HCl=NaCl+,H2O,Cu(OH), 2+H2SO4=,CuSO4+2H2O Salt+acid,anothersaltand...
Advantageistakenofthis factinobtainingfreebrominefrom theslatdepositsjustmentioned. 倒装句.应该是Takeadvantageof… 9.Thisdifferenceismoreapparent thanrealandisduemainlytothe factthatfluorineisitselffarmore activethantheotherhalogensand itscompoundsaremuchmore stable. 同谓语从句 10.Perhapsthemostdistingushing ...