New Jersey Barber and Hairstyling Practice Exam

Disable ads (and more) with a membership for a one time $2.99 payment

Prepare for the New Jersey Barber and Hairstyling licensing exam with practice tests. Cover all topics with hints and detailed explanations. Enhance your chances of passing!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

The head of a surfactant molecule attracts ________.

Water
Oil
Dirt
Air

The correct answer is: Water

Surfactant molecules are composed of hydrophilic (water-attracting) and hydrophobic (water-repelling) properties. The head of a surfactant molecule is hydrophilic, meaning it is attracted to water molecules. This allows the surfactant molecule to break up or disperse substances such as oil and dirt, which are typically hydrophobic and have difficulty mixing with water. Air does not have the same properties as water, thus surfactant molecules are not attracted to it.