This unit, CHEM1011, is designed for students who have not completed any High School / Secondary level chemistry (e.g. the HSC, IB or equivalent).

Please note that some degree pathways may require CHEM1111 to satisfy your degree progression. CHEM1111 does require some High School / Secondary level chemistry (e.g. the HSC, IB or equivalent).

If you are unsure or concerned about this, please contact the unit coordinator to discuss your options (chemistry.firstyear@sydney.edu.au).

Additionally, if you do later decide to undertake CHEM2 or CHEM3 units, we would be happy to have you and will recommend some summer content/study to cover the difference between this unit and its mainstream equivalent (CHEM1111).

You will also be allowed to transfer into our second first-year chemistry mainstream unit (CHEM1112) if you achieve a grade of over 75 in CHEM1011.

Question

This unit, CHEM1011, is designed for students who have not completed any High School / Secondary level chemistry (e.g. the HSC, IB or equivalent).

Please note that some degree pathways may require CHEM1111 to satisfy your degree progression. CHEM1111 does require some High School / Secondary level chemistry (e.g. the HSC, IB or equivalent).

If you are unsure or concerned about this, please contact the unit coordinator to discuss your options (chemistry.firstyear@sydney.edu.au).

Additionally, if you do later decide to undertake CHEM2 or CHEM3 units, we would be happy to have you and will recommend some summer content/study to cover the difference between this unit and its mainstream equivalent (CHEM1111).

You will also be allowed to transfer into our second first-year chemistry mainstream unit (CHEM1112) if you achieve a grade of over 75 in CHEM1011.

BlackTom AI · Accepted Answer

In this unit description, there is a sentence fragment that reads: 'CHEM1111 ____ some High School / Secondary level chemistry (e.g. the HSC, IB or equivalent).' 
Option A: 'have not' would yield 'CHEM1111 have not some High School chemistry,' which is ungrammatical because the subject CHEM1111 is singular and would require the third-person singular form. Additionally, 'have not' is the past participle form used with plural subjects (they have not), not with a singular noun like CHEM1111.
Option B: 'does' would yield 'CHEM1111 does require some High School / Secondary level chemistry,' which is grammatically correct because CHEM1111 is a singular noun (a course title) and the auxiliary 'does' is the appropriate form to accompany 'require' in the present simple tense for a singular subject. The sentence also aligns with the intended meaning: CHEM1111 requires some prior chemistry background.
To understand the distinction, recall basic subject–verb agreement rules: with a singular subject, use 'does' (not 'do' or 'have' forms) for auxiliary verbs in present simple questions or negations, and the main verb stays in its base form after the auxiliary ('does require' rather than 'do require'). In contrast, 'have not' is used with plural subjects (they have not) or with 'have' as a non-auxiliary main verb, which would not fit the structure here.
Contextually, the other parts of the excerpt explain prerequisites and progression between CHEM1011 and CHEM1111, so stating that CHEM1111 does require some high school chemistry makes logical sense for conveying prerequisites and ensuring students understand overlap between courses. The alternative would create a grammatical error that disrupts comprehension and would imply an incorrect tense/agreement for a singular course title.
Therefore, the grammatically correct choice is the one that correctly matches the subject-verb agreement and preserves the intended meaning about CHEM1111 requiring prior chemistry knowledge. While evaluating options, the key takeaway is matching 'CHEM1111' with a singular auxiliary form and using the base form of 'require' after it, which points to the proper usage in this sentence.

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