[Dergyll]

Hey guys new to this forum and I have recently have gotten an extremely picky AP Chem teacher. I have some basic questions regarding writing ChemFormulas and ChemNames for compounds created between Metals and Non-Metals (most are polyatomic such as Ammonium(NH₄) and Chromate(CrO₄^2-)

If I have something like Silver(Ag+) bonding with Chromate(CrO₄^2-) how would I write that? As Ag₂CrO₄? and should I purt parenthesis around the Chromate? I heard somewhere it's necessary for polyatomics to have that. And what should it be called? Simply Silver Chromate? No name changes?

What about Hydrogen Bicarbonate H(HCO₃)? Because polyatomics stay with themselves, you would need to parenthesis to distinguish the Hs otherwise do I write this compound as HHCO₃? Would be weird...

Lastly, if the metal has positive 2 or more charges like Calcium (Ca²⁺) would they simply acquire a subscript of 2? And would it's name stay like Calcium or Dicalcium or something?

I know its alot of questions, sorry about that if anybody can help me thanks a bunch!
Your Noobie Chem Student
Derg

[Bakegaku]

how would I write that? As Ag2CrO4? and should I purt parenthesis around the Chromate? I heard somewhere it's necessary for polyatomics to have that. And what should it be called? Simply Silver Chromate? No name changes?

Yup.  That's right.  If you have two of the same ion, like calcium nitrate or something, you would use parenthesis.  (Ca(NO₃)₂.  Apart from situations like that, you don't need parentheses.

What about Hydrogen Bicarbonate H(HCO3)? Because polyatomics stay with themselves, you would need to parenthesis to distinguish the Hs otherwise do I write this compound as HHCO3? Would be weird...

I believe you're looking for "carbonic acid."

Lastly, if the metal has positive 2 or more charges like Calcium (Ca2+) would they simply acquire a subscript of 2? And would it's name stay like Calcium or Dicalcium or something?

Not sure what you're asking here, exactly... You wouldn't ever change the name of the metal ion, but make sure the charges of the cation(s) and the anion(s) are equal to eachother.  Could you give an example of what you mean?