Why is oxiadation is bad? Where rust is caused because of water and oxygen reacting or oxiadation in cell biology that damage cells and DNA because of energy and oxygen reacting.

What can scientist do about oxiadation?

Could vehicles be made of other material that does not react to water and oxygen?

Edited 16 hours ago16 hr by Moon99

22 minutes ago, Moon99 said:

Why is oxiadation is bad?

It is not fundamentally bad. Oxidation is merely a chemical process and it also has many important biological functions. For example, we oxidize nutrients to create reducing equivalents so that we can generate energy (via oxidative phosphorylation).

25 minutes ago, Moon99 said:

Where rust is caused because of water and oxygen reacting

Rust requires iron (it is an iron (hydr)oxide.

26 minutes ago, Moon99 said:

oxiadation in cell biology that damage cells and DNA because of energy and oxygen reacting.

So that is not the issue. What can happen is that during respiration reactive oxygen species are generated. This is mostly due to leakage from the ubiquinon pool as part of the aforementioned oxidative phosphorylation. These species are kind of aggressive and can indeed lead to damages, unless they are dealt with the many mechanisms in cells to neutralize them (e.g. superoxide dismutases, catalases, peroxidases etc.).

28 minutes ago, Moon99 said:

What can scientist do about oxiadation?

Nothing. If we stop oxidation, we stop critical biochemical processes and we just die. Not due to oxidation, but because our cells run out of energy (well and other critical processes). Redox reactions are kind of the essentials for metabolism.

29 minutes ago, Moon99 said:

Could vehicles be made of other material that does not react to water and oxygen?

I mean, yes. Anything that is not made of iron will, by definition, not rust.

11 hours ago, Moon99 said:

Why is oxiadation is bad? Where rust is caused because of water and oxygen reacting or oxiadation in cell biology that damage cells and DNA because of energy and oxygen reacting.

What can scientist do about oxiadation?

Could vehicles be made of other material that does not react to water and oxygen?

You can make cars from aluminium, which does not easily corrode. However it is costly to reduce from its ore, which is done by electrolysis, because it is trivalent, needing 3 electrons per atom. So it takes a lot of electricity. Most aluminium smelting is done close to a source of cheap electricity. In fact aluminium is only stable in air because it instantly forms a protective oxide layer on the surface. Unfortunately iron tends to form a complex range of hydrated oxides in the presence of moisture which don't form such a layer.

You can make car bodies from other materials but metals are preferred, partly because of strength but partly too because they can be designed to deform progressively in a crash, protecting the occupants.

In practice, car bodies are made from various grades of steel. This is not simply iron but an alloy of iron with carbon and potentially a variety of other elements, selected to modify the properties of the steel in various ways. Steel is generally more resistant to rusting than pure iron. Surface treatments such as galvanising may also be used to improve corrosion resistance.

12 hours ago, Moon99 said:

Could vehicles be made of other material that does not react to water and oxygen?

Yes. If you compare cars of today with those of 50 years ago, you’ll see there’s more plastic and composite materials. Steel is still present because of strength requirements and cost issues, but it’s around 60% of the weight as opposed to ~87% in 1970

https://pubs.usgs.gov/fs/2005/3144/fs2005_3144.pdf

IIRC, in the 70's and before, cars didn't last much beyond 10 years in the UK, when rust became a critical problem.

Edited 15 minutes ago15 min by StringJunky