First activity.

Hello! good morning, my name is José Manuel Pérez Chino, I am a student of chemistry, I'm twenty-two years old, my e-mail is perezchino0928@gmail.com, I am of Uxpanapa, Veracruz, Mexico.
https://soundcloud.com/jose-manuel-236900332/101-tsu-quimica#t=0:18