Properties of Molecules and Mixtures

Front

Why do the dyes on the chromatography test separate into the different colors?

Back

The dyes separated because the molecules of the dyes had different sizes and weights

Front

How do molecules in a mixture travel up the paper in chromatography?

Back

Molecules are carried up the paper by water because they are attracted to the water and mix with it.

Front

What is the difference between salad dressings with and without sediments?

Back

Salad dressings with sediments contain solids that are not soluble, while those without sediments contain soluble solids.

Front

What does it mean when a solid dissolves in water?

Back

It means that the molecules of the solid are attracted to water molecules.

Front

Why do some solids not dissolve in water?

Back

Some solids do not dissolve in water because their molecules are not attracted to water molecules.

Front

How do emulsifiers help in mixing liquids?

Back

Emulsifiers allow liquids to mix by having molecules that are strongly attracted to both types of molecules in the liquids.

Front

What does an emulsifier do?

Back

Makes two substances that don't usually mix together mix.

Front

Define solubility

Back

The ability to dissolve

Front

What does it mean when there is sediment at the bottom of something?

Back

That the substances that were mixed were not attracted to each other

Front

Define matter

Back

The stuff that everything is made of in the world