객관식
Which branch of the chemical industry typically requires advanced degrees for employment?
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1. Intro to General Chemistry
Chemical Properties
객관식
Which of the following substances commonly found in shampoos is highly flammable and has an astringent quality that causes it to evaporate quickly?
A
Sodium lauryl sulfate
B
Glycerin
C
Ethanol
D
Water
검증된 단계별 안내1
Identify the properties described in the question: the substance is highly flammable, has an astringent quality, and evaporates quickly.
Recall that sodium lauryl sulfate is a surfactant commonly used for cleaning but is not highly flammable and does not evaporate quickly.
Consider glycerin, which is a viscous, non-flammable humectant that does not evaporate quickly and lacks astringent properties.
Water is non-flammable and evaporates relatively slowly compared to volatile organic compounds.
Ethanol is a volatile organic compound that is highly flammable, has an astringent (drying) effect, and evaporates quickly, matching all the properties described.
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