Chem
Check Drivers
- Definition Clarification: Check drivers are discussed, specifically distinguishing between glycarbonate and hydrocarbonate.
- Correct Identification: Hydrocarbonate is acknowledged.
Chemical Ions and Structures
- Ionic Species Identified:
- CrO4 two minus: Chromate
- SO4 two minus: Sulfate
- ClO minus: Hypochlorite
- NH4 plus: Ammonium
- CH3CO2 minus: Acetate
- NO3 minus: Nitrate
- H2PO4 minus: Dihydrogen phosphate
- PO4 minus: Phosphate
- PO3 minus: Phosphite
- ClO4 minus: Perchlorate
Nomenclature and Grading Criteria
- Common Errors:
- Importance of capitalization in naming ions: Nitrate must be capitalized; lowercase indicates an error.
- Subscript requirements: Must subscript numbers correctly for clarity and accuracy.
- Grading Guidelines:
- Spelling errors affecting chemistry won't be penalized unless they change the meaning (e.g., chromate vs. chlorate).
- Students are encouraged to contest grades with reasonable arguments; if correct, grades can be raised, but not lowered.
Assessment Overview
- Grading Policy:
- Explain inaccuracies post-return of graded material; all errors should be addressed.
- Students are responsible for ensuring their work is counted correctly, especially in a large class of 72 students.