Classifying Chemical Reactions

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

Mg + HCl --> MgCl₂ + H₂

• combustion
• synthesis
• decomposition
• single replacement

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Cl₂ + KBr --> KCl + Br₂

• synthesis
• decomposition
• single replacement
• double replacement

What class of reaction best describes the equation below:

2HgClO₃ ----> 2HgO + Cl₂

• Synthesis

• Decomposition

• Single Replacement

• Double Replacement

• Combustion

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

• 2Al₂O₃ --> 4Al + 3O₂

• 2C₅H₁₀ + 15O₂ --> 10CO₂ + 10H₂O

• 2MgCl₂ + Na₂CO₃ --> 2 NaCl + MgCO₃

• K₂O + H₂O --> 2 KOH

Tags

NGSS.HS-PS3-4

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