14-09-2020
Chemistry

contestada

E
1
1 point
Which of the following is an elemental substance?
Select all the correct answers.
Mercury
2
Oxygen (O2)
3
Platinum
Chlorine (C12)
Carbon Dioxide (CO2)

Respuesta :

burbur420420 burbur420420

14-09-2020

Answer:

oxygen and Carbon dioxide

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