Answer to: Give the complete balanced equation for each reaction: a. HBr(aq) + KOH(aq) arrow b. HCl(aq) + NaHCO3(aq) arrow By signing up, you'll...
Br- Net Ionic Equation The balanced net ionic equation includes only species that are involved in the reaction. It can be found by removing ions that occur on both the reactant and product side of the complete ionic equation. 2H+(aq) + Mg(OH)2(s) = Mg2+(aq) + 2H2O(l) ...
Mg(OH)2+2HBr =2H2O + Mg(Br)2 ReactantsProducts Mg11✔️ O22✔️ H44✔️ Br22✔️ Step 3: Verify that the equation is balanced Since there are an equal number of atoms of each element on both sides, the equation is balanced. ...
根据题目信息可知,CH3CH2Br和H2O互相交换成分生成CH3CH2OH和HBr,据此作答。 【详解】 A.由CaC2+2H2O→Ca(OH)2+CH≡CH↑,CaC2和H2O互相交换成分,生成Ca(OH)2和CH≡CH,与题中反应原理相同,故A不符合题意; B.由NH3(1)自耦电离,,SiCl4和NH3互相交换成分,生成Si(NH2)4和NH4Cl,原理与题干中相同,故...
Karle IL,Girardi RD,Fratini AV,Karle J.The crystal structures of DL-cyclazocine and L-cycla-zocine.HBr.H2O,and the absolute configuration of L-cyclazocine.HBr.H2O(2-cyclo-propylmethyl-2‘-hydroxy-5,9-dimethyl-6,7-benzomorphan). Acta Crystallographica . 1969...
H2O(l)、NH3(l)均可自耦电离:2H2O(l)⇌OH-+ H3O+、2NH3(l) ⇌ + 。下列反应与 →CH3CH2OH+HBr原理不同的是 A.CaC2+2H2O→Ca(OH)2+CH≡CH↑B.SiCl4+8NH3(l)=Si(NH2)4+4NH4Cl C.3Cl2+ 8NH3=6NH4Cl+N2D.PCl3+3H2O=H3PO3+ 3HCl ...
2HCHO+2H2O (3) (4)氢气的体积相同 (5)D 【解析】 试题分析:(1)以上所给物质中①②③分子式均为C8H8O2,属于同分异构体关系。 故答案为:①②③; (2)④为甲醇,在催化剂存在条件下加热和氧气反应的化学方程式为:2CH3OH+O2 2HCHO+2H2O。
①溴水中存在化学平衡:Br2+H2O HBr+HBrO,当加入AgNO3溶液后,溶液颜色变浅 ②铁在潮湿的空气中易生锈 ③二氧化氮与四氧化二氮的平衡体系,增大压强后颜色加深 ④合成氨反应,为提高氨的产率,理论上应采取降低温度的措施 ⑤钠与氯化钾共融制备钾:Na(l)+KCl(l) K(g)+NaCl(l) A.①④B.③④C.②⑤D.②③试...
1. H2O(l)、NH3(l)均可自耦电离:2H2O(l)OH-+ H3O+、2NH3(l)+。下列反应与→CH3CH2OH+HBr原理不同的是( )A . CaC2+2H2O→Ca(OH)2+CH≡CH↑B . SiCl4+8NH3(l)=Si(NH2)4 +4NH4Cl C . 3Cl2 + 8NH3=6NH4Cl+N2 D . PCl3+3H2O=H3PO3+ 3HCl ...
.(12分)一定条件下,某容积为1L的密闭容器中发生如下反应:C(s)+H2O(g) CO(g)+H2(g) (Ⅰ)(1)维持温度不变,向该容器中充入2molC(s)和2molH2O(g),达到平衡后混合气体的平均相对分子质量为M,则M的范围为 .(2)在(1)中若充入的是2.5molCO(g)和4molH2(g),达到平衡后混合气体的平均相对分子质...