Question

Which facts did you include in your response? Check all that apply.

Oxidation is the loss of electrons.

Reduction is the gain of electrons.

Oxidation increases the oxidation number.

Reduction decreases the oxidation number.

In an oxidation-reduction reaction, the electrons from the oxidized atom or ion are transferred to the atom or ion that is reduced.

Answer 1

I don't have the text of the earlier response to check against. Please either paste that response here or tell me which message you mean.

If you mean a typical concise redox explanation, all five statements you listed are correct and I would normally include them:
- Oxidation is the loss of electrons.
- Reduction is the gain of electrons.
- Oxidation increases the oxidation number.
- Reduction decreases the oxidation number.
- In a redox reaction, the electrons lost by the oxidized species are transferred to the species that is reduced.

Paste the earlier assistant reply and I'll mark exactly which of those facts it contained.