Elements, Compounds, Mixtures

Front

What is a compound?

Back

A compound is a substance formed when two or more different elements are chemically bonded together.

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 the difference between an element and a compound?

Back

An element is a pure substance that cannot be broken down into simpler substances, while a compound is made up of two or more elements that are chemically combined.

Front

What is a heterogeneous mixture?

Back

A heterogeneous mixture is a mixture in which the components are not uniformly distributed, and different parts can be seen, such as a salad.

Front

What is a homogeneous mixture?

Back

A homogeneous mixture is a mixture in which the components are evenly distributed and cannot be distinguished from one another, such as saltwater.

Front

How many different elements are in sodium carbonate (Na2CO3)?

Back

Sodium carbonate contains 3 different elements: sodium (Na), carbon (C), and oxygen (O).

Front

Is sugar (C12H22O11) an element or a compound?

Back

Sugar is a compound because it is made up of multiple elements (carbon, hydrogen, and oxygen) chemically bonded together.

Front

What is an example of a compound?

Back

Water (H2O) is an example of a compound, consisting of hydrogen and oxygen.

Front

What is an example of a heterogeneous mixture?

Back

A salad with lettuce, olives, and tomatoes is an example of a heterogeneous mixture.

Front

What is an example of a homogeneous mixture?

Back

A cup of coffee is an example of a homogeneous mixture.