Cuban National Chemistry Contest 2024

This contribution compiles the problems, solutions and results of the Cuban National Chemistry Contest (CNQ) for high school students celebrated nationwide this year. This chemistry olympiad is a yearly competition that stimulates high school students to study chemical sciences during their bachelor's. It is sponsored by the Cuban Ministry of Education, the Cuban Society of Chemistry, the University of Havana and other institutions. Tenth-, eleventh- and twelfth-graders (15-18 years old, on average) are welcome to participate. It takes place in every province of the country at the Vocational High School for Exact Sciences (IPVCE). It is organized as a two-day competition in which the students try to solve two sets of theoretical or theoretical-practical problems elaborated by previous contestants and mentors. The problem sets have both common questions for two or three grades and individual questions. The highest scores are priced with gold, silver and bronze medals. Top winners are part of the national pre-selection and are invited to Havana for a short training period. After a final selection round, the national team for the international chemistry olympiads is formed. This year, the CNQ took place on February 19 and 20. The qualification of the exams was performed in Havana by a committee composed of selected students and mentors from the University of Havana. Herein, the problem sets of the Preparatory Problems booklet, the national exams and their solutions, and the results of the Cuban students in the national and international competitions of the previous year are provided in the official Spanish version and English translation.