Sr(OH)2(aq)→ Sr2+(aq) + 2OH-(aq) 2H+(aq) + SO42-(aq) + Sr2+(aq) + 2OH-(aq) = 2H2O(l) + SrSO4(s) Spectator Ions Spectator ions are ions that do not take part in the reaction. They are removed from the complete ionic equation to get the net ionic equation.Net...
aH2SO4+bSr(OH)2=cSr(SO4) +dH2O Step 2: Create a System of Equations Create an equation for each element (H, S, O, Sr) where each term represents the number of atoms of the element in each reactant or product. H:2a +2b =0c+2dS:1a +0b=1c +0dO:4a +2b =4c +...
H2SO4 + Sr(OH)2→ Reactions in Aqueous Solution: Numerous types of chemical reactions occur in an aqueous solution. For instance, acids and bases typically react with one another in reactions that are known as neutralization reactions. The acid and base are said toneutrali...
百度试题 结果1 题目根据元素周期表和元素周期律分析下面推断,其中不正确的是() A. Sr(OH)2比氢氧化钙的碱性强 B. 砹(At)的氢化物不稳定 C. H2SeO4的酸性比H2SO4强 D. 铍(Be)的原子失电子能力比镁弱 相关知识点: 试题来源: 解析 C 反馈 收藏 ...
【答案】 (1)CO:(2) ①. CO ②. SO2 (3)①. Al_2O_3 ②. SiO2 (4) SrS+2H_2O=H_2S+Sr(OH)_2 (5)① 2*10^(-4) ②.23.8 (6) Sr^(2+)+2OH^-+CO_2=SrCO_3↓+H_2O 【解析】 【分析】由于 c(Al)c(Zn2) 均为0.1 mol-L .,曲线③④表示的离子为c(Al)或c(Zn),纵 标...
Sr(OH)2 Sr(OH)2.(7)已知某次实验得到浓缩后的氯化锶溶液中溶质为818g,溶剂为1000g,经测定该溶液的密度为1.5g/mL,则该溶液溶质的质量浓度x为 675 675 g/L(计算结果保留整数). 硫酸溶液可写成氧化物的水化物形式:SO3·nH2O;也可写成H2SO4的水合物形式:H2SO4·nH2O(n=1、2、3等)。则质量分数为98...
③SrCl2?6H2O的摩尔质量为:267g/mol.(1)天青石焙烧前先研磨粉碎,其目的是 .(2)隔绝空气高温焙烧,若0.5mol SrSO4中只有S被还原,转移了4mol电子.写出该反应的化学方程式: .(3)为了得到较纯的六水氯化锶晶体,过滤2后还需进行的两步操作是 .(4)加入硫酸的目的是 .为了提高原料的利用率,滤液中Sr2+的浓度...
(NH4)2SO4 + Sr(OH)2 = NH3 + H2O + SrSO4 C6H5CH2OH + CuO = C6H5OH + Cu + H2O NaNO3 + Zn = Zn(NO3)2 + Na C4H4 + AgNO3 + NH3 = C4H3Ag + NH4NO3 Mg(OH)2 + SO3 = MgSO4 + H2O 近期平衡的方程式 練習 K2SO4-++H2O-++KNO3-++...
(2分) 23.8(答“24”不给分)(2分) (6)Sr^(2+)+CO_2+2OH^-=SrCO_3↓+H_2O (未配平得1分;不 写沉淀符号不扣分)(2分)【流程分析】 SrSO4 SrS、 CO2, 可能 H2SO4溶液 CO2 天青石 有CO、SO2 煅烧 水浸 除杂 沉锶 →SrCO3 碳粉 滤渣 钡渣 C C、CaSiO3 BaSO4 AlO3 Sio2 【解析】以...
解析 答:NH4+-NH3, Ac—-HAc, H2O-H3O+, H2O-OH-, HSO4—-SO42-, HNO3-NO3-, H2SO4-HSO4-, CO32—-HCO3-, HCO3—-H2CO3 (1) Sr, Cs, Ba (2) Ca, Ge, Ga (3) P, As, S Solution (1) Cs, Ba, Sr; (2) Ca, Ga, Ge; (3) As, P, S...