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

asked Jan 1, 2020 55.0k views

2 votes

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3 votes

Answer:

carbon dioxide

Step-by-step explanation:

the rest are mixtures

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

Mehdi Sakout answered Jan 3, 2020

5.6k points

4 votes

D could be a answer

Bryan Weaver answered Jan 5, 2020

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