Chemistry Reactions Quiz

Which of the following is a synthesis reaction?

• H₂ + Cl₂ → 2HCl

• 2KClO₃ → 2KCl + 3O₂

• CH₄ + 2O₂ → CO₂ + 2H₂O

• Zn + CuSO₄ → ZnSO₄ + Cu

Which of the following is a combustion reaction?

• Ca + Cl₂ → CaCl₂

• 2H₂O → 2H₂ + O₂

• CH₄ + 2O₂ → CO₂ + 2H₂O

• AgNO₃ + NaCl → AgCl + NaNO₃

What type of reaction is 2H₂O₂ → 2H₂O + O₂?

• Synthesis

• Decomposition

• Combustion

• Double replacement

What type of reaction is Zn + HCl → ZnCl₂ + H₂?

• Synthesis

• Combustion

• Single replacement

• Double replacement

Which of the following reactions is a decomposition reaction?

• H₂ + O₂ → H₂O

• CaCO₃ → CaO + CO₂

• Fe + CuSO₄ → FeSO₄ + Cu

• NaOH + HCl → NaCl + H₂O

Which is a double replacement reaction?

• 2Na + Cl₂ → 2NaCl

• Zn + CuSO₄ → ZnSO₄ + Cu

• CH₄ + O₂ → CO₂ + H₂O

• AgNO₃ + NaCl → AgCl + NaNO₃

What always occurs in a combustion reaction?

• A metal reacts with an acid

• A compound breaks apart

• Oxygen reacts with a fuel

• A gas is released

Which of the following is a single replacement reaction?

• Fe + CuSO₄ → FeSO₄ + Cu

• C + O₂ → CO₂

• H₂O → H₂ + O₂

• HCl + NaOH → NaCl + H₂O

Which best defines a decomposition reaction?

• A reaction that forms one product

• A reaction with oxygen

• A reaction between acids and bases

• A reaction that breaks one reactant into two or more products

Which of the following is NOT a combustion reaction?

• C₆H₁₂ + 9O₂ → 6CO₂ + 6H₂O

• HCl + NaOH → NaCl + H₂O

• 2H₂ + O₂ → 2H₂O

• CH₄ + 2O₂ → CO₂ + 2H₂O