Single + Double Replacement

You know a single replacement reaction will occur if...

• The less active element is located in the aqueous compound on the products side

• The more active element is located in the aqueous compound on the reactants side

• The more active element is located in the aqueous compound on the products side

If you wear gold jewelry in the shower does a chemical reaction take place?

• No, gold (Au) is less active than the hydrogen in water

• No, gold (Au) is more active than the hydrogen in water

• Yes, but you can't physically see the reaction happen

• Yes, gold (Au) is more active than the hydrogen in water

Predict the results: K + H₂O -->

• K₂OH

• KOH + H₂

• K(OH)₂

Predict the results: ZnS + O₂ -->

• ZnO₂ + S_2

• Zn₂O + S

• ZnO + S

Predict the results: Cu + HCl

• CuCl₂ + H₂

• CuCl + H₂

• Cu₂Cl + H₂

• No Reaction

The chemical reaction AgNO₃ + NaCl --> AgCl + NaNO₃ is a

• single displacement

• double displacement

• composition

• decomposition

Which of the following correctly describes a single replacement reaction?

• two elements combine to form a compound

• oxygen is necessary for the reaction to occur

• elements from two compounds replace each other

• one element replaces another element in a compound

Which is the correct net ionic equation for the reaction of AgNO₃ and CaCl₂?

• Ca²⁺(aq) +  2Cl^- (aq) → CaCl(s)
• Ag⁺(aq)  +  Cl^- (aq) → AgCl(s)
• Ag +  Cl  →  AgCl
• Ag⁺  +  Ca²⁺   →Ag₂Ca (s)

What are the spectator ions in the reaction of sodium chloride with silver nitrate?

• silver and nitrate
• sodium and chloride
• sodium and nitrate
• silver and chloride

In this equation,
CuCl₂ + NaOH  → Cu(OH)₂ + NaCl
Which product is insoluble?

• copper(II) hydroxide
• sodium chloride
• sodium hydroxide
• copper(II) chloride