Question

What is a mixture and why is the air we breathe a mixture?

Answer 1

A mixture is a material made up of two or more different chemical substances which are not chemically combined.

Air is a mixture because the components of air are not chemically combined together.

What is a mixture?

A mixture is a material made up of two or more different chemical substances which are not chemically combined. This mixture can be separated using physical method.

The composition of the air we breathe include the following;

• Oxygen
• Nitrogen
• Carbon (iv) oxide
• Noble gases

Air is a mixture because the components of air are not chemically combined together.

Learn more about mixtures here:brainly.com/question/10677519

Answer 2

Answer:

We breathe (mostly) an homogeneous mixture of elements: elemental nitrogen, N2 ; elemental oxygen, O2 . The mixture is homogeneous because the dioxygen and dinitrogen are in the same phase and state.