2.7 *Separating Mixtures

Front

What is a heterogeneous mixture?

Back

A mixture where the components are not uniformly distributed, and different parts can be seen, like a salad.

Front

What is a homogeneous mixture?

Back

A mixture that has the same composition throughout, such as saltwater.

Front

What is an element?

Back

A pure substance that consists of only one type of atom, like oxygen or gold.

Front

What is a solution?

Back

A special type of homogeneous mixture where one substance is dissolved in another, like lemonade.

Front

What method would you use to separate rocks from sand?

Back

You could use a sieve or filter to separate the larger rocks from the finer sand.

Front

What is a compound?

Back

A substance formed when two or more elements are chemically bonded together, like water (H2O).

Front

What is the difference between a mixture and a compound?

Back

A mixture is a combination of substances that retain their individual properties, while a compound is a substance formed from two or more elements that are chemically combined.

Front

Can mixtures be separated by physical means?

Back

Yes, mixtures can be separated by physical methods such as filtration, evaporation, or distillation.

Front

What is filtration?

Back

A process used to separate solids from liquids or gases using a filter.

Front

What is evaporation?

Back

A method to separate a dissolved solid from a liquid by heating the liquid until it turns into vapor.