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【简答题】

试述B<sub>2</sub>O<sub>3</sub>中加入Na<sub>2</sub>O后,结构发生的变化,解释硼酸盐玻璃的硼反常现象?

更多“试述B<sub>2</sub>O<sub>3</sub>中加入Na<sub>2</sub>O后,结构发生的变化,解释硼酸盐玻璃的硼反常现象?”相关的问题
第1题

A、SiOb>2b>;Alb>2b>Ob>3b>、Feb>2b>Ob>3b>&nbsp;&nbsp;B、Alb>2b>Ob>3b>;Feb>2b>Ob>3b>、SiOb>2b>&nbsp;&nbsp;C、Feb>2b>Ob>3b>;SiOb>2b>、Alb>2b>Ob>3b>&nbsp;&nbsp;

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第2题

A、CHb>4b>+2Ob>2b>=2Hb>2b>O+COb>2b>&nbsp;&nbsp;B2CHb>4b>+3Ob>2b>=4Hb>2b>O+2CO&nbsp;&nbsp;C、CHb>4b>+Ob>2b>=Hb>2b>O+COb>2b>&nbsp;&nbsp;D、CHb>4b>+Ob>2b>=Hb>2b>O+CO&nbsp;&nbsp;

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第3题

A、CaO、SiOb>2b>、Alb>2b>Ob>3b>、Feb>2b>Ob>3b>&nbsp;&nbsp;B、CaO、SiOb>2b>、Alb>2b>Ob>3b>、MgO&nbsp;&nbsp;C、f-CaO、SiOb>2b>、Alb>2b>Ob>3b>、Feb>2b>Ob>3b>&nbsp;&nbsp;

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第4题

A、Hb>2b>Bb>3b>Ob>6b>&nbsp;&nbsp;B、Hb>2b>Bb>4b>Ob>7b>&nbsp;&nbsp;C、Hb>2b>Bb>2b>Ob>3b>&nbsp;&nbsp;D、Hb>2b>Bb>3b>Ob>5b>&nbsp;&nbsp;

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第5题

A、Kb>2b>Crb>2b>Ob>7b>&nbsp;&nbsp;B、Nab>2b>Sb>2b>Ob>3b>&nbsp;&nbsp;C、Zn&nbsp;&nbsp;D、Hb>2b>Cb>2b>Ob>4b>&middot;2Hb>2b>O&nbsp;&nbsp;

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第6题

A、COb>2b>+Hb>2b>S→CSb>2b>+2Hb>2b>O&nbsp;&nbsp;B、COb>2b>+2S→CSb>2b>+Ob>2b>&nbsp;&nbsp;C、COb>2b>+2Hb>2b>S→CSb>2b>+Hb>2b>O&nbsp;&nbsp;D、COb>2b>+2Hb>2b>S→CSb>2b>+2Hb>2b>O&nbsp;&nbsp;

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第7题

A、CO+2Hb>2b> = CHb>3b>OH+Q;COb>2b>+3Hb>2b>= CHb>3b>OH+Hb>2b>O+Q&nbsp;&nbsp;B、CO+Hb>2b>O = COb>2b>+Hb>2b>;4CO+8Hb>2b> = Cb>4b>Hb>9b>OH+3Hb>2b>O&nbsp;&nbsp;C、CO+3Hb>2b> = CHb>4b>+Hb>2b>O+Q ;COb>2b>+4Hb>2b> = CHb>4b>+2Hb>2b>O+Q&nbsp;&nbsp;D、CO+2Hb>2b> = CHb>4b>+Q;COb>2b>+3Hb>2b> = CHb>4b>+Hb>2b>O+Q&nbsp;&nbsp;

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第8题

A、CO、COb>2b>、Ob>2b>&nbsp;&nbsp;B、COb>2b>、Ob>2b>、CO&nbsp;&nbsp;C、Ob>2b>、CO、COb>2b>&nbsp;&nbsp;D、Ob>2b>、COb>2b>、CO&nbsp;&nbsp;

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第9题

A、Cb>nb>Hb>2n+2b>Ob>2b>&nbsp;&nbsp;B、Cb>nb>Hb>2nb>Ob>2b>&nbsp;&nbsp;C、Cb>nb>Hb>n+2b>Ob>2b>&nbsp;&nbsp;D、Cb>nb>Hb>2n+1b>Ob>2b>&nbsp;&nbsp;

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第10题

A、两种离子都比Ob>2b>分子稳定性小&nbsp;&nbsp;BO2-b>2b>的键长比O-b>2b>键长短&nbsp;&nbsp;C、O2-b>2b>是反磁性的,而O-b>2b>是顺磁性的&nbsp;&nbsp;D、O-b>2b>的键能比O2-b>2b>的键能大&nbsp;&nbsp;

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