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Secondary 1 | Maths
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Wang Yuan Zhen
Wang Yuan Zhen

Secondary 1 chevron_right Maths

How to do this qn?

Date Posted: 2 years ago
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Wh25's answer
12 answers (A Helpful Person)
I think that the ans is B. Sry Im wrong because my physics are not good.

Reason I choose B is because hydrogen gas is a state of gas which its particles expands faster hence having a heavier mass. But mercury is liquid state which it's particles expands slower as compared to gas ( you will learn this in sec 2)