Question

Part A Which of the following reactions are redox reactions? Which of the following reactions are...

Part A Which of the following reactions are redox reactions? Which of the following reactions are redox reactions?

Ba(NO3)2(aq)+K2SO4(aq)?BaSO4(s)+2KNO3(aq)

Zn(s)+Fe2+(aq)?Zn2+(aq)+Fe(s)

HCl(aq)+NaOH(aq)?H2O(l)+NaCl(aq)

Ca(s)+Cl2(g)?CaCl2(s)

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Answer #1

increase of oxidation number is oxidation

Decrease of oxidation number is reduction

If both are present is called is called red ox reaction

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