Which of these can be classified as a substance A) oxygen B) carbon dioxide C) air D) acid rain

Question

asked Jan 1, 2020 55.0k views

2 Answers

Mehdi Sakout · Answer 1 · 2020-01-03T08:00:19+0000

Answer:

carbon dioxide

Step-by-step explanation:

the rest are mixtures

A chemical substance is composed of one type of atom or molecule.