HONORS Final Exam Review - Part 4 - Chemical Reactions

What is the general formula for a synthesis reaction?

• A + B → AB

• AB → A + B

• A + B → A + B

• AB → A + B + C

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

• 2H₂ + O₂ → 2H₂O

• H₂O → H₂ + O₂

• NaCl → Na + Cl₂

• CO₂ → C + O₂

What is the general formula for a decomposition reaction?

• A) A + B → AB

• B) AB → A + B

• C) A + BC → AC + B

• D) A + BC → BA + C

Which of the following is an example of the decomposition of water?

• A) 2 H₂O → 2H₂ + O₂

• B) 2 Hg + O₂ → 2HgO

• C) Fe + CuSO₄ → FeSO₄ + Cu

• D) Mg + 2 HCl → MgCl₂ + H₂

What is the general formula for a single replacement reaction?

• A) AB → A + B

• B) A + BC → AC + B

• C) A + B → AB

• D) A + BC → BA + C

Which of the following reactions is an example of a single replacement reaction?

• A) 2 H₂O → 2H₂ + O₂

• B) 2 HgO → 2Hg + O₂

• C) Fe + CuSO₄ → FeSO₄ + Cu

• D) AB → A + B

In the reaction Fe + CuSO₄ → FeSO₄ + Cu, which element is replaced?

• A) Fe

• B) Cu

• C) SO₄

• D) H₂

What is the general formula for a double replacement reaction?

• AB + CD → AD + CB

• A + B → AB

• AB → A + B

• A + B → C

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

• AgNO₃ + NaCl → AgCl + NaNO₃

• C₅H₁₂ + O₂ → CO₂ + H₂O

• 2MgO → 2Mg + O₂

• 2Al + 3Cl₂ → 2AlCl₃

What is the general formula for a combustion reaction (of a hydrocarbon)?

• CₓHᵧ + O₂ → CO₂ + H₂O

• AB + CD → AD + CB

• A + B → AB

• AB → A + B