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21 July, 16:33

Use a periodic table to find the elements that are most abundant in our Oceans:

A) H, Cl, O

B) Al, Fe, Ca, Na, K, Mg, O, Si

C) N, O, Ar

d) H, N, Ca, P, O, C

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  1. 21 July, 17:07
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    The correct answer is A

    Explanation:

    Hydrogen, oxygen, chlorine are the most abundant elements in oceans.

    Oxygen is 85.84% by mass

    Hydrogen is 10.82% by mass

    Chlorine is 1.94% by mass
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