Front

What is a compound?

Back

A compound is a pure substance formed when two or more elements chemically combine in fixed proportions.

Front

What is an element?

Back

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

Front

What is a mixture?

Back

A mixture is a combination of two or more substances that are not chemically bonded and can be separated by physical means.

Front

What is a homogeneous mixture?

Back

A homogeneous mixture is a mixture that has a uniform composition throughout, such as salt water.

Front

What is a heterogeneous mixture?

Back

A heterogeneous mixture is a mixture that does not have a uniform composition, such as salad or Italian dressing.

Front

What is a chemical formula?

Back

A chemical formula is a way of expressing the composition of a compound using symbols for its constituent elements, e.g., C11H22O11.

Front

What is the difference between a compound and a mixture?

Back

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

Front

What is an example of a compound?

Back

Water (H2O) is an example of a compound.

Front

What is an example of an element?

Back

Gold (Au) is an example of an element.

Front

What is an example of a homogeneous mixture?

Back

Salt water is an example of a homogeneous mixture.