Elements, Compounds, and Mixtures

Front

What is a compound?

Back

A compound is a substance formed when two or more elements are chemically bonded together. Example: C6H12O6 (glucose) is a compound made of carbon, hydrogen, and oxygen.

Front

What is an element?

Back

An element is a pure substance that consists of only one type of atom. Example: Oxygen (O) is an element.

Front

What is a mixture?

Back

A mixture is a combination of two or more substances that are not chemically bonded. Example: Saltwater is a mixture of salt and water.

Front

What is a homogeneous mixture?

Back

A homogeneous mixture is a mixture that has a uniform composition throughout. Example: Sugar dissolved in water.

Front

What is a heterogeneous mixture?

Back

A heterogeneous mixture is a mixture that does not have a uniform composition and the different components can be seen. Example: Salad.

Front

How are ionic bonds formed?

Back

Ionic bonds are formed through the transfer of electrons from one atom to another, resulting in the formation of charged ions.

Front

What is a covalent bond?

Back

A covalent bond is formed when two atoms share one or more pairs of electrons. Example: The bond between two hydrogen atoms in H2.

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 combination of substances that are not chemically bonded.

Front

What is the chemical formula for glucose?

Back

C6H12O6

Front

What type of bond is present in water (H2O)?

Back

Covalent bond.