Web Analytics
Answered

What polyatomic ion forms a neutral compound when combined with a group 2A monatomic ion in a 1:1 ratio?

• ammonium

• carbonate

• nitrate

• phosphate

Verified Answer :

lovey7

It's B. Carbonate hope this helps

Giangiglia

Answer:

Cabonate

Explanation:

Hi, this are the ions you listed:

Ammonium: \(NH_4^+\)

Carbonate: \(CO_3^{-2}\)

Nitrate: \(NO_3^-\)

Phosphate: \(PO_4^{-3}\)

All group 2A compounds (like Ca, Mg) have a valence number of +2. So:

  • They don't bond with ammonium because they are both +
  • With Cabonate they make neutral 1:1 compound: \(Ca^{+2}CO_3^{-2} \longrightarrow CaCO_3\)
  • With Nitrate they make positive 1:1 compound: \(Ca^{+2}NO_3^- \longrightarrow CaNO_3^+\)
  • With Phosphate they make negative 1:1 compound: \(Ca^{+2}PO_4^{-3} \longrightarrow CaPO_4^-\)

Related Questions