Which of the following are redox reactions? P4 (s) + 10HClO (aq) + 6H2O (l) →4H3PO4 (aq) + 10HCl (aq) Br2 (l) + 2K (s) →2KBr (s) CH3CH2OH (l) + 3O2 (g) →3H2O (l) + 2CO2 (g) ZnCl2 (aq) + 2NaOH (aq) →Zn (OH) 2 (s) + 2NaCl (aq) For those reactions that are redox, indicate which elements are oxidized.

The answer to your question is:

Explanation:

a) P4⁰ (s) + 10H⁺¹Cl⁺¹O⁻² (aq) + 6H2O (l) → 4H⁺¹3P⁺⁵O4⁻² (aq) + 10H⁺¹Cl⁻¹ (aq)

It's a Redox reaction

Phosphorous oxidizes goes from 0 to + 5

b) Br2⁰ (l) + 2K (s) ⁰ → 2K⁺¹Br⁻¹ (s)

It's an oxidation reaction

Potassium oxidizes goes from 0 to + 1

c) CH3CH2OH (l) + 3O2 (g) → 3H2O (l) + 2 CO2 (g)

It is not a REDOX reaction

d) Zn⁺²Cl2⁻¹ (aq) + 2Na⁺¹O⁻²H⁺¹ (aq) → Zn⁺² (O⁻²H⁺¹) 2 (s) + 2Na⁺¹Cl⁻¹ (aq)

It's not a REDOX reaction