Elements, Compounds, Mixtures

Front

What is the chemical formula for salt?

Back

NaCl

Front

What is a mixture?

Back

A combination of two or more substances that are not chemically bonded.

Front

What is a homogeneous mixture?

Back

A mixture that has a uniform composition and properties throughout.

Front

What is an element?

Back

A 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 heterogeneous mixture?

Back

A mixture that has a non-uniform composition and properties.

Front

Give an example of a compound.

Back

Water (H2O) is a compound made of hydrogen and oxygen.

Front

Give an example of a heterogeneous mixture.

Back

Salad is a heterogeneous mixture because its components can be seen and separated.

Front

What is the difference between a compound and a mixture?

Back

A compound is a chemical combination of elements, while a mixture is a physical combination of substances.

Front

What is the main characteristic of an element?

Back

Elements are pure substances that consist of only one type of atom.