Stack Exchange network consists of 181 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.
Chemistry Stack Exchange is a question and answer site for scientists, academics, teachers, and students in the field of chemistry. It only takes a minute to sign up.
Q&A for work
Connect and share knowledge within a single location that is structured and easy to search.
This synthesis problem is giving me a lot of trouble. The main problem is that the four steps I have down I think are the only ones I need but there is another blank. Anyone have any thoughts?
Required, but never shown