5.06 Single Displacement Reactions

Which of the following is an example of a single-displacement reaction?

• 4Co + 3O₂ → 2Co₂O₃

• MnSO₄ → MnO + SO₃

• Cd + 2HCl → CdCl₂ + H₂

• 6NaNO₃ → 6NaNO₂ + 3O₂

Mg + 2HCl → MgCl₂ + H₂ is an example of which type of reaction?

• synthesis

• double-displacement

• decomposition

• single-displacement

What will be the product or products if zinc (Zn) reacts with hydrochloric acid (HCl)?

• Zn

• ZnH₂ + Cl₂

• Zn + 2 HCl

• ZnCl₂ + H₂

Will the following reaction proceed as written?

Cu + 2AgNO₃ →2Ag + Cu(NO₃)₂

• Yes, because copper has a lower activity than silver.

• No, because copper has a higher activity than silver.

• Yes, because copper has a higher activity than silver.

• No, because copper has a lower activity than silver.

What is the general equation for single-displacement reactions?

• A + B → AB

• AB → A + B

• AX + BY → AY + BX

• AX + B → A + BX