(Chemistry) please help me with this question. Thank you very much:)))

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secondary 4 | Biology
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secondary 4 Biology Singapore

(Chemistry) please help me with this question. Thank you very much:)))

Date Posted: 5 years ago

done {{ upvoteCount }} Upvotes

clear {{ downvoteCount * -1 }} Downvotes

Date Posted: 5 years ago

Wen

5 years ago

I get it now. Thank you so much:))))))