加热氢氧化钙与氯化铵固体发生如下反应:Ca(OH)2+2NH4ClCaCl2+2X+2H2O。试

加热氢氧化钙与氯化铵固体发生如下反应:Ca(OH)2+2NH4ClCaCl2+2X+2H2O。试推测X的化学式

是(   ANO2          BH3N          CHCl          DNH3

答案

【答案】D

【解析】根据质量守恒定律元素种类、原子个数不变和化学式书写原则判断X的化学式NH3,故D选正

确。故选D

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