Types of Chemical Reactions

What type of reaction is represented by the equation: AB + CD → AD + CB?

• Combination reaction

• Decomposition reaction

• Single displacement reaction

• Double displacement reaction

Which of the following is an example of a double displacement reaction?

• 2Mg + O₂ → 2MgO

• 2H₂O → 2H₂ + O₂

• HCl + NaOH → NaCl + H₂O

• Fe + CuSO₄ → FeSO₄ + Cu

In a single displacement reaction, what happens?

• Two compounds exchange ions.

• A single element replaces another element in a compound.

• Two or more reactants combine to form a single product.

• A single compound breaks down into simpler substances.

A reaction where a single compound breaks down into two or more simpler substances is called:

• Displacement reaction

• Combination reaction

• Decomposition reaction

• Double displacement reaction

Which of the following reactions is a synthesis reaction?

• 2KCl → 2K + Cl₂

• AgNO₃ + NaCl → AgCl + NaNO₃

• 2H₂ + O₂ → 2H₂O

• Zn + 2HCl → ZnCl₂ + H₂

In the reaction: Fe + Cu(NO₃)₂ → Fe(NO₃)₂ + Cu, which type of reaction is occurring?

• Double displacement

• Single displacement

• Combination

• Decomposition

What is the general form of a combustion reaction?

• A + B → AB

• AB → A + B

• AB + CD → AD + CB

• Fuel + O₂ → CO₂ + H₂O

The reaction: 2Na + Cl₂ → 2NaCl is an example of:

• Decomposition

• Synthesis

• Single displacement

• Double displacement

The reaction: Pb(NO₃)₂ + 2KI → PbI₂ + 2KNO₃ is what type of reaction?

• Single displacement

• Decomposition

• Double displacement

• Combustion

Which reaction is the opposite of a combination reaction?

• Combustion reaction

• Decomposition reaction

• Single replacement reaction

• Neutralization reaction