Final Answer:
The polyatomic ions with its correct name is:
a. OH⁻ - 1 Hydroxide
b. NO₂⁻ - 2 Nitrite
c. NO₃⁻ - 3 Nitrate
d. PO₄³⁻ - 4 Phosphate
e. NH₄⁺ - 5 Ammonium
Step-by-step explanation:
Polyatomic ions are charged species composed of two or more atoms. In this context, each ion has a unique name corresponding to its chemical formula. The hydroxide ion (OH⁻) is represented by the formula "a" and is named as "1 Hydroxide."
Nitrite (NO₂⁻), denoted by "b," is named "2 Nitrite." Nitrate (NO₃⁻), with the formula "c," is labeled as "3 Nitrate." The phosphate ion (PO₄³⁻), signified by "d," is identified as "4 Phosphate." Lastly, the ammonium ion (NH₄⁺), represented by "e," is called "5 Ammonium."
Understanding these associations requires recognizing the chemical composition of each ion. Hydroxide consists of one oxygen and one hydrogen atom. Nitrite comprises one nitrogen and two oxygen atoms, while nitrate contains one nitrogen and three oxygen atoms.
Phosphate is composed of one phosphorus atom and four oxygen atoms. Ammonium is a positively charged ion consisting of one nitrogen and four hydrogen atoms. Matching the given polyatomic ions with their correct names involves grasping the elemental components of each ion and their respective charges.