讲到钠与水反应实验时,往往都是将钠投入小烧杯(预先装了水并滴加酚酞试剂)中,盖上漏斗,在漏斗尖部放上玻璃小试管,尽管看到的实验现象较明显,但往往难以检测到产生的氢气。如何使钠与水反应这个实验效果更明显,更直观,既能检测到产生 When it comes to reaction experiments between sodium and water, sodium is often put in a small beaker (pre-filled with water and added with phenolphthalein reagent), covered with a funnel, and a glass test tube is placed at the tip of the funnel. Although the observed phenomenon More obvious, but often difficult to detect the hydrogen produced. How to make sodium and water react to the experimental effect is more obvious, more intuitive, both detected