Arnold K H Tan's answer to [36] marcoo's Secondary 1 Maths Singapore question.
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Note that the molecular mass of hydrogen is 2 and the molecular mass of carbon monoxide, CO, is 28.
Date Posted:
4 years ago
![[36] marcoo](https://ask.manytutors.com/users/1534756809-81446-thumbnail.jpg?1592058120)
thanks it really helped
Most welcome
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