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What is the difference between O2 and O3?

Answer 1

Oxygen gas # O_2# is very stable Ozone # O_3# is very unstable.

Because it powers the Kreb's cycle, which converts carbohydrates like sugar into energy, oxygen gas is essential to all living things. Although it reacts easily with other chemicals, oxygen remains stable up until a chemical reaction occurs.

Ozone is necessary for living things in that it protects living things from harmful solar radiation. Ozone being unstable reacts with and absorbs solar radiation breaking back down into normal #O_2# Oxygen. Without an Ozone layer solar radiation would cause substantial DNA damage to living organisms. It is possible that without Ozone life on the surface of the earth would not be viable.

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Answer 2

Jose Arroyo

O2 has a diatomic molecular structure with two oxygen atoms, while O3 has a triatomic molecular structure with three oxygen atoms.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.