Answer:
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Answer:
S4N2
Explanation:
good luck have a nice day
<span>Of all the sub-shells shown ( 1s ,2s ,2p ,3s ,3p ,4s ,3d ,4p ,5s ,4d ,5p ,6s ,4f ,5d) the ones that act as core orbital of HF (Hydrogen Fluoride) is 6s and 5d</span>
A requires oxygen
The reason is that fermentation does not always need oxygen.