Classifying Reactions

Two or more reactants form only one complex product.

• synthesis

• decomposition

• single replacement

• double replacement

• combustion

A + B ⇒ AB

• synthesis

• decomposition

• single replacement

• double replacement

• combustion

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

An uncombined element replaces another element in a compound.

• synthesis

• decomposition

• single replacement

• double replacement

• combustion

When two compounds yield two products but they swap or replace partners.

• synthesis

• decomposition

• single replacement

• double replacement

• combustion

AB + CD ⇒ AD + CB

• synthesis

• decomposition

• single replacement

• double replacement

• combustion

The products of this reaction are almost always water and carbon dioxide.

• synthesis

• decomposition

• single replacement

• double replacement

• combustion

Which of the following is an example of a decomposition 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?

• Cl₂ + 2NaBr ⟶ 2NaCl + Br₂

• MgO + CO₂ ⟶ MgCO₃

• FeBr₃ + K₃PO₄ ⟶ FePO₄ + 3KBr

• 2Na₂O₂ ⟶ 2Na₂O + O₂

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

• Cl₂ + 2NaBr ⟶ 2NaCl + Br₂

• MgO + CO₂ ⟶ MgCO₃

• FeBr₃ + K₃PO₄ ⟶ FePO₄ + 3KBr

• 2Na₂O₂ ⟶ 2Na₂O + O₂

Which of the following is NOT a combustion reaction?

• CH₄ + 2O₂

  →

  CO₂ + 2H₂O

• C₃H₈ + 5O₂

  →

  3CO₂ + 4H₂O

• FeBr₃ + K₃PO₄

  ⟶

  FePO₄ + 3KBr

• C₂H₅OH + 3O₂

  →

  2CO₂ + 3H₂O