How Do You Correctly Name These Ionic Compounds?

[brycenrg]

Homework Statement

It's been a minute since I've used this stuff.
Name the Ionic Compound

Ca(MnO4)2
Ba(HCO3)2
UO3
NaH2PO4

Homework Equations

In my book it says you name the cation first then add an Ide to the root.
In UO3 this seems to work as its Uranium Oxide.
But for the others I am not sure. When i look it up online it doesn't have the ide in the root.[/B]

The Attempt at a Solution

Calcium permanganide
Barium hydrogen carbonide
Uranium Oxide
Sodium dihydrogen phosphide
[/B]

 

[Suraj M]

Manganide? Carbonide? Phosphide? If you have a doubt make a search on the name you thought off and see if it corresponds to the given compound.

 

[brycenrg]

I'm just wondering why those don't include ide at the end

 

[Borek]

Hydride, carbide, sulfide, oxide, chloride etc. are reserved for compounds made of two elements only.

 

[brycenrg]

Thank you :D Yes those are for polyatomic ions