Question

A polyatomic ion can be found in which of the following choices?
a. Sr+2
b. CH3COOH
c. LiBr
d. O3
e. ClO-3

Answer 1

Answer:

Indeed, most ionic compounds contain polyatomic ions. Well-known examples are sodium hydroxide (NaOH) with OH- as the polyatomic anion, calcium carbonate (CaCO3), and ammonium nitrate (NH4NO3), which contains two polyatomic ions: NH+ and NO3-.

Explanation:

hope it helps

Answer 2

The Answer is e. ClO₅⁻

explanation:

a.   Sr⁺²   is mono ionic with positif charge

b.  CH₃COOH is a neutral molecule, not an ion

c.   LiBr is a neutral molecule, not an ion

d.  O₃ is a neutral molecule, not an ion

e.   ClO₃⁻  is a polyatomic ion

* Polyatomic ion is ion that performed from more that one atom