Types of Chemical Reactions Quiz

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

• 2H₂O → 2H₂ + O₂

• 2Na + Cl₂ → 2NaCl

• Cu + 2AgNO₃ → Cu(NO₃)₂ + 2Ag

• CaCO₃ → CaO + CO₂

In which of the following reactions does decomposition occur?

• Zn + 2HCl → ZnCl₂ + H₂

• CaCO₃ → CaO + CO₂

• HCl + NaOH → NaCl + H₂O

• 2K + 2H₂O → 2KOH + H₂

Tags

NGSS.MS-PS1-5

Which type of chemical reaction is represented by the following equation: CuSO₄ + Zn → ZnSO₄ + Cu?

• Synthesis

• Decomposition

• Single replacement

• Double replacement

Which of the following reactions demonstrates double replacement?

• Na₂CO₃ + CaCl₂ → CaCO₃ + 2NaCl

• 2H₂O → 2H₂ + O₂

• 4Fe + 3O₂ → 2Fe₂O₃

• 2Na + 2H₂O → 2NaOH + H₂

When calcium carbonate (CaCO₃) is heated to form calcium oxide (CaO) and carbon dioxide (CO₂), what type of reaction occurs?

• Synthesis

• Decomposition

• Single replacement

• Double replacement

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

NGSS.MS-PS1-5

Which of the following correctly represents a single replacement reaction?

• 2H₂ + O₂ → 2H₂O

• Cu + 2AgNO₃ → Cu(NO₃)₂ + 2Ag

• H₂SO₄ + Ba(OH)₂ → BaSO₄ + 2H₂O

• KClO₃ → KCl + O₂

Tags

NGSS.MS-PS1-2

What type of chemical reaction is depicted by the equation below? NaOH + HCl → NaCl + H₂O

• Synthesis

• Decomposition

• Single replacement

• Double replacement

Tags

NGSS.MS-PS1-2

Which of the following reactions is an example of a decomposition reaction?

• 2Na + Cl₂ → 2NaCl

• Mg + 2HCl → MgCl₂ + H₂

• 2KClO₃ → 2KCl + 3O₂

• AgNO₃ + NaCl → AgCl + NaNO₃

When sulfur (S) is heated in air, what is the expected product?

• SO₂

• SO₃

• S₂O₃

• S₂O

Tags

NGSS.MS-PS1-2

Which of the following best describes the reaction of magnesium (Mg) when heated?

• Mg burns with a bright white flame and forms MgO.

• Mg melts and evaporates.

• Mg reacts to form MgCl₂ in the presence of heat.

• Mg forms MgS when heated in air.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

NGSS.MS-PS1-5