Question

multiple - choice question
what is air classified as?
homogeneous mixture
element
heterogeneous mixture
compound

Explanation:

Air is made up of different gases like nitrogen, oxygen, carbon dioxide, etc. A homogeneous mixture has a uniform composition throughout. Air has a uniform composition (the gases are evenly distributed). An element is a pure substance made of only one type of atom (e.g., oxygen gas \(O_2\) is an element but air is not). A heterogeneous mixture has a non - uniform composition (e.g., sand and water). A compound is a pure substance formed by chemical combination of two or more elements in a fixed ratio (e.g., water \(H_2O\)).

Answer:

Homogeneous mixture