Key Idea.
Section 1
To Mix or Separate?
Have you ever tried to mix oil and vinegar? You can shake it until your arm is tired, but as soon as you stop, they start to separate.
Liquids have different properties. Some liquids, like water and milk, mix easily. Others, like oil and water, are "unmixable." They naturally push apart and form distinct layers. This separation happens because the molecules in the oil are very different from the molecules in the vinegar.
Section 2
Molecular Cliques
Think of molecules like groups of friends at a lunchroom. Water molecules love to hang out with other water molecules. Oil molecules love to hang out with other oil molecules.
Because the water molecules are highly attracted to each other, they stick together tightly, squeezing the oil molecules out. This strong attraction between similar molecules is the force that causes the liquids to separate into layers.
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Section 1
To Mix or Separate?
Have you ever tried to mix oil and vinegar? You can shake it until your arm is tired, but as soon as you stop, they start to separate.
Liquids have different properties. Some liquids, like water and milk, mix easily. Others, like oil and water, are "unmixable." They naturally push apart and form distinct layers. This separation happens because the molecules in the oil are very different from the molecules in the vinegar.
Section 2
Molecular Cliques
Think of molecules like groups of friends at a lunchroom. Water molecules love to hang out with other water molecules. Oil molecules love to hang out with other oil molecules.
Because the water molecules are highly attracted to each other, they stick together tightly, squeezing the oil molecules out. This strong attraction between similar molecules is the force that causes the liquids to separate into layers.
Book overview
Jump across lessons in the current chapter without opening the full course modal.
Continue this chapter