TesterClub de lecture : après la dernière page
Avec Luna
Manche d'essaiZuzaOoh, wrong! It's H2O. Two hydrogens, one oxygen.
Question 1 sur 3
What is the chemical formula for water?
Three of the five questions in this round. Every fact was checked against a source.
Échauffement : sciences
Cinq questions de sciences express pour lancer le cours.
