A:0.1 mol/L
B:0.9 mol/L
C:1.8 mol/L
D:1.9 mol/L
Considering the great urgency, the project is supposed ______ as soon as possible.
①实验一:把蜡烛放在电子秤上,记录数据后将其点燃(如图一),几分钟后发现电子秤的示数变小了.
②实验二:将图二所示的装置罩在蜡烛上方,记录数据后再点燃蜡烛(图三),与实验一燃烧相同的时间,发现电子秤的示数变大了.
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