Question

Which of the following polyatomic ions will NOT form an ionic compound with a single potassium ion? (5 points)

NO31−
NO21−
HCO31−
CO32−

Answer 1

HCO31-?

Answer 2

ty. I think thats it too

Answer 3

The answer is carbonate. It forms K2CO3 and that isn't a single K ion.

The others form KNO3, KNO2, and KHCO3. All of those are single K ions.

Answer 4

lol np

Answer 5

[AI-generated answer — Explain Bot]

To determine which polyatomic ion will NOT form an ionic compound with a single potassium ion, we need to look at the charges of the ions involved.

Potassium ion (K+) has a charge of +1 since it belongs to Group 1 in the periodic table.

Now, let's analyze each polyatomic ion:

1. NO3^-: The nitrate ion has a charge of -1. When combined with a +1 potassium ion, they will form an ionic compound called potassium nitrate (KNO3).

2. NO2^-: The nitrite ion also has a charge of -1. When combined with K+, they will form an ionic compound called potassium nitrite (KNO2).

3. HCO3^-: The bicarbonate (or hydrogen carbonate) ion has a charge of -1. When combined with K+, they will form an ionic compound called potassium bicarbonate (KHCO3).

4. CO3^2-: The carbonate ion has a charge of -2. When combined with K+, they will form an ionic compound called potassium carbonate (K2CO3).

From the analysis, we can see that all of the given polyatomic ions can form an ionic compound with a single potassium ion except NO2^- (nitrite ion). Therefore, the polyatomic ion that will NOT form an ionic compound with a single potassium ion is NO2^- (nitrite ion).