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kkurt [141]
3 years ago
13

Molecular formula of a certain ionic compound is XY2 and X is a metal. State group to which elements X and Y belong to in the pe

riodic table. plzzz help​
Chemistry
1 answer:
emmasim [6.3K]3 years ago
3 0

Answer: m Most likely Group2 metals and Group 17 non-ktta                                                                

Explanation:

A little more information is needed to be certain, but the likely answer is that X belongs to Group 2 and Y belongs to Group 17.  Group 2 metals (Be, Mg, Ca, Sr, Ba, etc.) are all divalent.  They gave rive up 2 electrons each to return to a full shell.  Group 17 elements (e,g, F, Cl, Br, I, etc.) all require 1 electron to reach a full valence shell.  That would make the proportion 1X to 2Y, or XY2.  It is possible that a metal outside of Group 2 would also have a valency of 2.  Iron(II) forms FeCl2, for example.

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Answer:

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Explanation:

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A 2.5 L flask is filled with 0.25 atm SO3, 0.20 atm SO2, and 0.40 atm O2, and allowed to reach equilibrium. Assume at the temper
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Explanation:

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