• Tại pH ≈ 6, axit glutamic (Glu) có điện tích âm nên di chuyển về cực dương, còn Lysine (Lys) có điện tích dương nên di chuyển về cực âm. Glycine (Gly) tồn tại chủ yếu ở dạng ion lưỡng cực nên không di chuyển về cực nào

HCOOCH₂CH₂CH₃: propyl formate;

HCOOCH(CH₃)₂: isopropyl formate;

CH₃COOCH₂CH₃: ethyl acetate;

CH₃CH₂COOCH₃: methyl propionate.

gNowadays, more and more young Vietnamese people are embracing the celebration of festivals like Christmas and Halloween. In my opinion, this trend has both positive and negative impacts on the youth in Vietnam.

Firstly, the positive aspect of this trend is the encouragement of extracurricular activities. Celebrating global festivals provides opportunities for creative expression, fostering a sense of teamwork and skill development among young individuals. This contributes positively to their personal growth and well-rounded development.

Secondly, there is a concern that such global celebrations may lead to the loss of cultural identity among the youth. It is crucial to strike a balance between embracing foreign cultures and preserving traditions. The risk of neglecting local festivals must be acknowledged to maintain a strong sense of identity.

Finally, exposure to different cultures during global festivals helps young Vietnamese people learn about the world. This cultural exchange fosters understanding and building a more interconnected global community.

In conclusion, I firmly believe that while celebrating international festivals has its positive aspects, the youth in Vietnam needs to maintain a balance. Embracing foreign cultures should not come at the expense of neglecting their rich traditions. A balanced approach will ensure the positive impacts outweigh the potential negative consequences.