At the end of a unit on stoichiometry, a high school chemistry teacher wants to assess student knowledge. What is the best summative assessment for the teacher to administer to the students?

OPTE: 6-12 is part of the Certification Examinations for Oklahoma Educators (CEOE). CEOS include a wide variety (including subject tests) of exams to help prospective and current educators acquire the certification needed to teach in Oklahoma public schools. 

Secondary school teachers in Oklahoma must be qualified to teach grades 6-12. You can prove your qualification for this age range by passing the OPTE: 6-12.