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A. 已知CO2通入Ca(OH)2溶液中先变浑浊后溶解,SO2通入Ba(OH)2溶液中也先变浑浊后溶解 B. 已知BaCO3能溶于盐酸,溶液变澄清,BaCO3也能溶于硫酸,溶液变澄清 C. 已知H2O能与Na2O2反应生成NaOH,H2O也能与BaO2反应生成Ba(OH)2 D. 已知CO2+2NaOH=Na2CO3+H2O,则SiO2+2NaOH=Na2SiO3+H2O 相关知识点: 试题...
1st LEVEL: * One large bedroom & a full bathroom downstairs * Stunning renovated kitchen featuring SS appliances & a large island * Equipped w/ Tesla batteries, EV charger, H2O softener, engineered floors * Abundant custom storage in 2-car garage * Newly painte $1,825,116 Last ...
CA的特点 •文摘报道量大而全面：收录60多种语言、18000多种期刊等文献，每年报道的文献量约有50万篇，收集的文献占全世界化学文献总量的98%。•报道及时：报道时差最多为3个月，美国专利12小时就能送到。•索引完备：检索途径多。•独一无二的化学物质登录体系：针对化学物质一物多名的问题，制定了唯一...
(1)Ca(OH)2是离子化合物,由由Ca2+离子和OH-离子构成,Ca(OH)2的电子式为 ,H2O是共价化合物,氧原子分别与两个氢原子通过一对共用电子对结合,H2O电子式为 ,故答案为: ; ;(2)NH3是共价化合物,氮原子分别与3个氢原子通过一对共用电子对结合,NH3电子式为 ,MgO是离子化合物,由Mg2+离子和O2-离子构成,MgO的...
如何判断CA安全证书介质棒与电脑已完全连接（）如图所示，升降机地板上放一台秤，盘中放一质量为m的物体，当台秤的读数为0.8mg时，此时升降机加速度大小是（ ）
marble fireplace in living room.Inside laundry w sink,formal living & forml dining area.Fantastic master suite w jacuzzi tub,double sink vanity,all marble.Hall bath w lovely marble.Ceiling fans,skylights,cathedral & coffered ceilings,C/A & F/A,leased alarm.Instant Hot H2O.Two remote control...
Prepare to fall in love with this immaculate home! Vaulted Ceilings & Open Concept living space feels HUGE! Gorgeous stainless appliances in kitchen & pullout drawers in pantry. If you need 4 bedrooms, then you need a BIG breakfast bar & endless hot water from the TANKLESS H2O HEATER!