Chemical Reactions and Reaction Types Quiz

What defines a single-replacement reaction?

• Two compounds completely dissolving
• One atom or group of atoms replacing part of another compound
• Two compounds creating a new solid
• Elements remaining unchanged

In the reaction Fe + CuSO₄ → FeSO₄ + Cu, which element is being replaced?

• Iron
• Copper
• Sulfur
• Oxygen

What characterizes a double-replacement reaction?

• Elements combining randomly
• Negative ions switching places between two compounds
• One element breaking down
• Compounds remaining stable

Which reaction type occurs when 2H₂ + O₂ → 2H₂O?

• Decomposition
• Single Replacement
• Double Replacement
• Synthesis

What happens in a decomposition reaction?

• Two elements combine
• A compound breaks into simpler substances
• Ions switch places
• New complex compounds form

In NaCl + AgNO₃ → NaNO₃ + AgCl, what type of reaction occurs?

• Single Replacement
• Synthesis
• Decomposition
• Double Replacement

Which reaction involves an element directly replacing another in a compound?

• Synthesis
• Decomposition
• Single Replacement
• Neutralization

What occurs when Zn + 2HCl → ZnCl₂ + H₂?

• Synthesis
• Decomposition
• Single Replacement
• Double Replacement

In 2KClO₃ → 2KCl + 3O₂, what type of reaction is demonstrated?

• Synthesis
• Decomposition
• Single Replacement
• Double Replacement

Which reaction involves two elements forming a single compound?

• Decomposition
• Single Replacement
• Double Replacement
• Synthesis