05-10-2019
Chemistry

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A new element has been discovered: element W. It is an alkaline earth metal.What would its formula be if it combines with chlorine?

How many atoms of each of the following elements are present in Hg3(BO3)3?
pls help

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cristisp93 cristisp93

06-10-2019

1) If the alkaline-earth metal will react with chlorine we have the following reaction:

M + Cl₂ → MCl₂

Because the alkaline-earth metal have a valence of 2 and the chlorine atom in this compound a valence of 1 the formula will be:

MCl₂

2) How many atoms of each of the following elements are present in Hg₃(BO₃)₃?

Hg = 3 atoms

B = 1 × 3 = 3 atoms

O = 3 × 3 = 9 atoms

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