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Alex Ar [27]
3 years ago
8

Barium reacts with a polyatomic ion to form a compound with the general formula Ba3(X)2. What would be the most likely formula f

or the compound formed between sodium and the polyatomic ion X?
A. NaX
B. Na2X
C. Na2X2
D. Na3X
E. Na3X2
Chemistry
2 answers:
Citrus2011 [14]3 years ago
7 0

Answer:

Na3X  (Option Dis correct)

Explanation:

Ba + X → Ba3(X)2

Barium has an oxidation number of +2 = Ba^2+

Barium will form the compound Ba3(X)2 when it reacts with X

Ba3(X)2 = 3Ba^2+ + 2X^3-

X should be an element with oxidation number -3

When sodium will bind with X the following reaction will happen:

3Na+ + X^3- = Na3X

Since sodium has only 1 valence electron, we need 3 sodium atoms to bind 1 X atom.

Option D Na3X is correct

AfilCa [17]3 years ago
3 0

Answer:

D. Na₃X

Explanation:

We have the neutral compound Ba₃(X)₂. <em>The total charge (zero) is equal to the sum of the charges of the ions times the number of ions in the molecule</em>.

3 × qBa + 2 × qX = 0

3 × (+2) + 2 × qX = 0

2 × qX = -6

qX = -3

If we have the cation Na⁺ and X³⁻, a neutral molecule would require 3 Na⁺ and 1 X³⁻. The resulting compound is Na₃X.

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