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Item SC100004: Two liquids with the same boiling point and color could be the same substance. (This item uses a table that lists properties of the liquids.)

Using the information about the four liquids in the table below, which of the following liquids could be the same substance?

  Volume
(mL)
Boiling Point
(°C)
Color
Liquid 1 25 100 colorless
Liquid 2 50 100 colorless
Liquid 3 25 78 colorless
Liquid 4 25 100 yellow
  1. Liquids 1 and 2
  2. Liquids 1 and 3
  3. Liquids 1 and 4
  4. None of the liquids could be the same substance.
Distribution of responses
Answer Choice
Overall
Grades
Gender
Primary Language
 
n = 2481
6–8
n = 1262
9–12
n = 1211
Male
n = 1201
Female
n = 1228
English
n = 2139
Other
n = 281
A. Liquids 1 and 2 37% 31% 44% 38% 37% 37% 36%
B. Liquids 1 and 3 16% 14% 17% 16% 15% 16% 17%
C. Liquids 1 and 4 27% 29% 24% 28% 24% 26% 27%
D. None of the liquids could be the same substance. 20% 25% 15% 18% 23% 21% 20%