Question

In the reaction C+0₂ → CO₂ which element is reduced in the reaction?

O C
O 0₂
O CO₂

Answer 1

O2 would be the correct answer

Answer 2

O2(oxygen)

Step-by-step explanation:

Reduced means the valence electrons are gained. From this equation we see in CO2, C is 4+ and for each O there's a 2-, however, originally, C and O2 are all 0, it's obvious that O is reduced from 0 to 2-