1995年高考化学试题第27题,原题及答案如下: 图(1)中瓶a内放入20ml 6 mol/L 盐酸,b是未充气的气球,里边放有4 g碳酸钙粉末,将它紧紧套在瓶a口上,胶管c套在瓶的侧口,并用弹簧夹d夹紧(瓶口和侧口都不漏气)。将图(1)的装置在托盘天平上称量,质量为W_1 g。根据实验现象填写下列空白: The 27th problem of the 1995 college entrance examination chemistry test question, the original question and the answer are as follows: Figure (1) put 20ml 6 mol/L hydrochloric acid into bottle a, b is an uninflated balloon, inside put 4g calcium carbonate powder, will it Put it tightly on the mouth of bottle a. The hose c is set on the side of the bottle and clamped with the spring clip d (the bottle mouth and the side mouth do not leak). The device of figure (1) is weighed on a tray balance and the mass is W_1 g. Fill in the following blanks based on the experimental phenomenon: