Question

Decide whether each chemical reaction in the table below is an oxidation-reduction ("redox") reaction. If the reaction is a redox reaction, write down the formula of the reducing agent and the formula of the oxidizing agent. redox reaction? yes no reducing Na,CO,C.) + H,PO, (ag) - N,HPO,() + COC) + H,01 XS ? egn agent: redox reaction? yes no reducing Cuso, (ag) + Zu() - 250 (0) + () 0 agent U redox reaction? yes no reducing 0 2Na(s) + a1,G) + 2NaC1(c) oxiding 0

Answer 1

1.) This is not a redox reaction. Oxidations are same before and after reaction.

2.) Yes redox reaction.

Reducing agent = Zn ( goes from 0 to +2)

Oxidising agent = CuSO4 ( Cu goes from +2 to 0)

3.) Yes redox reaction.

Reducing agent = Na ( goes from 0 to +1)

Oxidising agent = Cl2 ( goes from 0 to -1)

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