Classifying Chemical Reactions

In a synthesis reaction, two or more substances _______________ to form another substance.

Tags

NGSS.MS-PS1-1

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

• 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? FeS + HCl ⟶ H₂S + FeCl₂

• synthesis

• combustion

• single replacement

• double replacement

What class of reaction best describes the reaction Mg + HCl ⟶ MgCl₂ + H₂

• combustion

• synthesis

• decomposition

• single replacement

Tags

NGSS.MS-PS1-2

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

• 2Al₂O₃ ⟶ 4Al + 3O₂

• 2C₅H₁₀ + 15O₂ ⟶ 10CO₂ + 10H₂O

• 2MgCl₂ + Na₂CO₃ ⟶ 2 NaCl + MgCO₃

• K₂O + H₂O ⟶ 2 KOH

What types of reactions could this be? Check all that apply.

Fe + O₂ → Fe₂O₃

• combustion

• synthesis

• decomposition

• double replacement

• single replacement

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

AB + CD →AD + CB

• Double Replacement

• Single Replacement

• Synthesis

• Decomposition

Identify this type of reaction,
Cl₂ + 2KI _-->  I₂ + 2KCl

• Synthesis

• Single displacement

• Double displacement

• Decomposition

RbNO₃ + BeF₂ --> Be(NO₃)₂ + 2 RbF

• single displacement

• double displacment

• decomposition

• synthesis