3. Energy & Cell Processes

Chemical Reactions

Textbook Question
Which of the following chemical equations illustrates a typical decomposition reaction?
a. A + B → AB
b. AB + CD → AD + CB
c. 2A₂+ B₂ → 2A₂B
d. AB → A + B
Textbook Question
What factors determine whether a chemical reaction is spontaneous or not?
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Multiple Choice
Which of the following determines the sign of ΔG for a reaction?
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Multiple Choice
When one molecule is broken down into six component molecules, which of the following will always be true?
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Multiple Choice
An exergonic (spontaneous) reaction is a chemical reaction that __________.
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Multiple Choice
Which part of the equation ΔG = ΔH – TΔS tells you if a process is spontaneous?
Textbook Question
Which of the following would not result in an increase in reaction rate?
a. Increase in temperature
b. Particles in the solid phase
c. Presence of a catalyst
d. Smaller particle size
Multiple Choice
From the equation ΔG = ΔH – TΔS it is clear that __________.
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Textbook Question
Describe what takes place during a chemical reaction.
Multiple Choice
Which statement describes a reversible reaction that has reached chemical equilibrium?
Multiple Choice
Molecules A and B contain 110 kcal/mol of free energy, and molecules B and C contain 150 kcal/mol of energy. A and B are converted to C and D. What can be concluded?
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Textbook Question
Identify each of the following reactions as a synthesis, decomposition, or exchange reaction:
2Hg + O₂ 2HgO
Fe²¹ + CuSO₄ → FeSO₄ + Cu²¹
HCl + NaOH → NaCl + H₂O
HNO₃ → H⁺ + NO₃⁻
Multiple Choice
Which of the following statements is true for all exergonic reactions?
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