AP Chemistryeasymcq1 pt
Which is an oxidation-reduction reaction?
A.2Na + Cl₂ → 2NaCl
B.NaOH + HCl → NaCl + H₂O
C.AgNO₃ + NaCl → AgCl + NaNO₃
D.CO₂ + H₂O → H₂CO₃
Explanation
Core Concept
Sodium goes 0 → +1 and chlorine 0 → −1, so electrons transfer — the defining feature of redox.
Correct Answer
A2Na + Cl₂ → 2NaCl
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