6. Chemical Quantities & Aqueous Reactions
Balancing Redox Reactions: Acidic Solutions
21PRACTICE PROBLEM
Write the balanced half-reactions under acidic conditions and identify whether it is an oxidation or a reduction reaction
PtCl42-(aq) → Pt(s) + Cl-(aq)
Write the balanced half-reactions under acidic conditions and identify whether it is an oxidation or a reduction reaction
PtCl42-(aq) → Pt(s) + Cl-(aq)
ANSWERS OPTIONS
A
PtCl42-(aq) + 2 e- → Pt(s) + 4 Cl-(aq), reduction
B
2 PtCl42-(aq) + 2 e- → Pt(s) + 2 Cl-(aq), reduction
C
PtCl42-(aq) + 2 e- → Pt(s) + 4 Cl-(aq), oxidation
D
2 PtCl42-(aq) + 2 e- → Pt(s) + 2 Cl-(aq), oxidation