已知:2NO+CaO2═Ca(NO2)2;2NO2+CaO2═Ca(NO3)2.
请回答下列问题:
a.向装置中通入N2 b.向三颈烧瓶中滴加稀硝酸 c.点燃酒精灯 d.熄灭酒精灯 e.停止通入氮气 f.关闭分液漏斗旋塞
School violence ______ much attention of the whole society and people are calling on the government to make laws against it as early as possible.
某化学兴趣小组对“NaOH溶液与稀盐酸是否恰好完全反应”进行探究.请你参与他们的探究活动,并回答有关问题.
【实验探究】