Mercurtio was one of Romeo's friends. He was very poetic and had plenty of 'poetic' speech throughout the play before he got...killed in the fight where Romeo killed Tybalt after Mercurtio was killed by Tybalt. (Tybalt was Juliet's cousin).
Tybalt is the main antagonist in the famous play, "Romeo and Juliet." In the play, Tybalt kills Romeo's close friend Mercurtio. Tybalt is later killed by Romeo in retaliation.
Mercutio is like the element Mercury in that both possess qualities of unpredictability and volatility. Like Mercury, Mercutio is dynamic, quick-witted, and at times can be unstable or changeable in his moods and actions in Shakespeare's play "Romeo and Juliet".
This is a very difficult question. Many different answers arise and so it is up to you to chose whichever you think is most accurate. The most popular answer seems to be the death of Tybalt, because it is a turning point in the play. This is definitely a major turning point because the death of Tybalt serves as the beginning to all of Romeo and Juliet's problems. However, I personally believe that this is, rather than the climax, the beginning of the rising action. Others will say that the climax is when the Nurse finds Juliet (supposedly) dead. After her feigned death, the mood of the story is changed from happy (Juliet and Romeo being happy together, with hopeful looks toward their future; Capulet, Lady Capulet, and Paris looking forward to the wedding) to very melancholy (Romeo's misunderstanding about Juliet's feigned death, Lord and Lady Capulet's sadness at their dead daughter, the death of Lady Montague, the deaths of many others). I personally believe that the true climax of the story is when Romeo and Juliet die. This is the final point of major action in the story, which often defines a climax. After this point, the story merely concludes, with a summary of the story from Friar Lawrence and Romeo's letter (read by the Prince), as well as our learning that Lady Montague also died and that the Montagues and Capulets are going to resolve their feud because of the large amount of casualties that have been suffered.