TEACHER'S CERTIFICATE
\tˈiːt͡ʃəz sətˈɪfɪkət], \tˈiːtʃəz sətˈɪfɪkət], \t_ˈiː_tʃ_ə_z s_ə_t_ˈɪ_f_ɪ_k_ə_t]\
Word of the day
Quinones
- Hydrocarbon rings which contain two moieties position. They can be substituted in any position except at the ketone groups.