AP Chemistryeasymcq1 pt
Which reaction is a decomposition reaction?
A.2KClO₃ → 2KCl + 3O₂
B.2H₂ + O₂ → 2H₂O
C.Zn + CuSO₄ → ZnSO₄ + Cu
D.AgNO₃ + KCl → AgCl + KNO₃
Explanation
Core Concept
One reactant breaks into multiple products — the signature of decomposition. Heating potassium chlorate releases oxygen this way.
Correct Answer
A2KClO₃ → 2KCl + 3O₂
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