For the following unbalanced redox reaction  C2H4 (g) + O2 (g) yields CO2 (g) +H2O (l)  a. Identify the oxidation numbers for all the elements in the reactants.  b. Identify the oxidation numbers for all the elements in the products.  c. Write the unbalanced half reactions. Label each half reaction as either an oxidation or reduction.

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Q: Consider the unbalanced redox reaction shown below:

A: reducing agent  -oxidised Oxidising agent -reduced

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