Here's a helpful post for you:
For stoichiometry and mole problems, time yourself. Then check answers. This builds exam endurance. hebden chemistry 11 workbook answer key
If you don't have the physical workbook, you can access specific unit answer keys through various educator and student resource sites. Here's a helpful post for you: For stoichiometry
— hosted on Mr. Romswinckel's website . Full Workbook Resources in the full teacher’s edition
: Hosted as "Hebden Chemistry 11 A Workbook For Students," this version includes the complete introduction, units, and the answer key starting at the end of the document.
Each section contains dozens of practice problems, many with multiple parts. The official answer key provides the final answers for odd-numbered questions (in most editions) or, in the full teacher’s edition, answers to all questions.