Here are the answers to your questions based on the provided excerpt and context from "Macbeth":
Question 1: Lady Macbeth worries that her husband cannot kill King Duncan because –
Answer: He is too kind
Question 2: How do ambition and power affect Macbeth over the course of the play?
Answer: They corrupt him
Question 3: Lady Macbeth's erratic behavior and sleepwalking suggest that –
Answer: She is mentally unstable and going mad with guilt
Question 4: What does the imagined blood in Lady Macbeth's hands symbolize?
Answer: her guilt about her role in the deaths of King Duncan and Lady MacDuff
Question 5: A theme of Macbeth is –
Answer: power that is unearned will corrupt
Feel free to reach out if you need further explanations or assistance!