Classifying Equations

The reaction XY ⟶ X + Y is an example of _____.

• synthesis

• decomposition

• single replacement

• double replacement

The reaction AB + X ⟶ XB + A is classified as a _____ reaction.

• synthesis

• decomposition

• single replacement

• double replacement

The reaction AB + XY ⟶ XB + AY is an example of ______.

• synthesis

• decomposition

• single replacement

• double replacement

The reaction A + B ⟶ AB is classified as a _____ reaction.

• synthesis

• decomposition

• single replacment

• double replacement

What class of reaction best describes the equation below?

2HI ⟶ H₂ + I₂

• synthesis

• decomposition

• single replacement

• double replacement

What class of reaction best describes the equation below?

Zn + H₂S ⟶ ZnS + H₂

• synthesis

• combustion

• single replacement

• double replacement

What class of reaction best describes the equation below?

CH₄ + O₂ ⟶ CO₂ + H₂O

• single replacement

• double replacement

• decomposition

• combustion

What class of reaction best describes the equation below?

FeS + HCl ⟶ H₂S + FeCl₂

• synthesis

• combustion

• single replacement

• double replacement

Which of the following is an example of a synthesis reaction?

• Cl₂ + 2NaBr ⟶ 2NaCl + Br₂

• MgO + CO₂ ⟶ MgCO₃

• FeBr₃ + K₃PO₄ ⟶ FePO₄ + 3KBr

• 2Na₂O₂ ⟶ 2Na₂O + O₂

Which of the following is an example of a single replacement reaction?

• 2NaF ⟶ 2 Na + F₂

• P₂O₅ + 3 H₂O ⟶ 2H₃PO₄

• 2FeCl₃ + 3Zn ⟶ 2Fe + 3ZnCl₂

• C₆H₁₂O₆ + 6O₂ ⟶ 6CO₂ + 6 H₂O