Elements Mixtures and Compounds

Front

What is an element?

Back

An element is a pure substance that cannot be separated into simpler substances by physical or chemical means.

Front

What is a compound?

Back

A compound is a pure substance containing two or more kinds of atoms.

Front

What is a mixture?

Back

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

Front

What is a heterogeneous mixture?

Back

A heterogeneous mixture is a mixture in which the composition is not uniform throughout.

Front

What is a homogeneous mixture?

Back

A homogeneous mixture is a mixture in which the composition is uniform throughout.

Front

How many atoms are in one molecule of glucose, C6H12O6?

Back

There are 24 atoms in one molecule of glucose.

Front

What is the difference between a pure substance and a mixture?

Back

A pure substance has a uniform and definite composition, while a mixture contains two or more substances that retain their individual properties.

Front

Can compounds be separated into simpler substances?

Back

Yes, compounds can be separated into simpler substances by chemical means.

Front

What is an example of a compound?

Back

Water (H2O) is an example of a compound.

Front

What is an example of a mixture?

Back

Salad is an example of a mixture.