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问题:

(6分)将下列两组中的两种反应物混合,回答下列问题: (1)根据实验事实完成下表(没有发生反应的

(6分)将下列两组中的两种反应物混合,回答下列问题:

(1)根据实验事实完成下表(没有发生反应的,化学方程式一栏“/”)

编号

反应物1

反应物2

现象

化学方程式

1

稀盐酸

氢氧化钾溶液

没有明显现象

2

稀硫酸

氢氧化钡溶液

有白色沉淀生成

3

稀硝酸

澄清石灰水


  参考答案

正确答案:

(1)根据实验事实完成下表(没有发生反应的,化学方程式一栏“/”)

编号

反应物1

反应物2

现象

化学方程式

1

稀盐酸

氢氧化钾溶液

没有明显现象

HCl+KOH==KCl+H2O

2

稀硫酸

氢氧化钡溶液

有白色沉淀生成

Ba(OH)2+H2SO4==BaSO4↓+2H2O

3

稀硝酸

澄清石灰水

没有明显现象

2HNO3+Ca(OH)2==Ca(NO3)2+2H2O

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