Classification of Matter

Front

What is a mixture?

Back

A combination of two or more substances that can be separated by physical processes.

Front

What is a pure substance?

Back

A material that has a permanent composition and distinct properties.

Front

What is an element?

Back

A pure substance that cannot be broken down into simpler substances by chemical means.

Front

What is a compound?

Back

A substance formed when two or more elements are chemically bonded together.

Front

What is a solution?

Back

A homogeneous mixture where one substance is dissolved in another.

Front

What is the difference between a mixture and a compound?

Back

A mixture can be separated by physical means, while a compound can only be separated by chemical means.

Front

Can a mixture have a variable composition?

Back

Yes, mixtures can have varying proportions of their components.

Front

What is an example of a homogeneous mixture?

Back

Saltwater is an example of a homogeneous mixture.

Front

What is an example of a heterogeneous mixture?

Back

A salad is an example of a heterogeneous mixture.

Front

What is the law of definite proportions?

Back

In a compound, the elements are always combined in the same proportion by mass.