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Each student in Ms. Major's class was given an unknown substance. Ms. Major gave her students a list, shown below, of substancesEach student in Ms. Major's class was given an unknown substance. Ms. Ma
Each student in Ms. Major's class was given an unknown substance. Ms. Major gave her students a list, shown below, of substancesEach student in Ms. Major's class was given an unknown substance. Ms. Major gave her students a list, shown below, of substances and their properties to help them identify their unknown.
Substance Density Boiling Point Appearance
Water 1.0 g/mL 100°C colorless liquid
Ethanol 0.789 g/mL 78.4°C colorless liquid
Sodium Hydroxide 2.13 g/mL 1388°C white solid
Phosphoric Acid 1.685 g/mL 158°C white solid or colorless liquid
If a student's unknown is a colorless liquid and its boiling point was measured to be about 78°C, it is most likely _______.
Question 1 options:
water
phosphoric acid
sodium hydroxide
ethanol and their properties
