Question

What is the formula of the compound formed between the ammonium ion and the carbonate ion? Hint: Carbonate (CO3) can be treated as a single unit with a 2 charge, whereas Ammonium (NH) also can be treated as a single unit with a 1* charge. a) NH4CO3 b) NH4CO3)2 c) (NH4)2CO3 d) (NH2)2CO3 Ob) d)

Answer 1

Answer:

c) (NH₄)₂CO₃

Explanation:

The formula of a compound is formed by arranging the cation and anion ,

as follows -

First the cation is written , followed by the anion ,

Then the valency of the both the cation and the anion is crossed , and written as a subscript .

for example

cation A²⁺ and the anion B³⁻

Writing the cation first and anion second

A²⁺  B³⁻

now , crossing the valency , as,

A₃B₂

from the question ,

The cation is the ammonium ion , i.e. , NH₄⁺

and the anion , is carbonate ion , i.e. , CO₃²⁻

Now , the formula is written as -

(NH₄)₂CO₃