Naming and writing formulas of compounds

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Discussion Overview

The discussion revolves around naming chemical compounds and writing their corresponding formulas. Participants engage with specific examples, including both naming compounds from given formulas and deriving formulas from compound names. The scope includes theoretical understanding and practical application in chemistry.

Discussion Character

  • Homework-related
  • Debate/contested
  • Technical explanation

Main Points Raised

  • One participant attempts to name several compounds, providing names for formulas such as ZnI2 and SO2, but some names are incorrect or incomplete.
  • Another participant points out that Br is not barium and corrects the naming of BrF to bromine fluoride.
  • There is a correction regarding calcium hydroxide, clarifying that the correct formula is Ca(OH)2, not CaH2.
  • Participants express uncertainty about the naming of BaHPO3 and AgIO2, with one questioning the identity of Ag.
  • Disagreement arises over the formula for zinc sulfate, with one participant stating it is ZnSO3, while another corrects this to indicate it should be ZnSO4.
  • There is confusion regarding the formula for gold(III) sulfate, with a participant mistakenly using Ag instead of Au.
  • Participants discuss the meaning of "ferrous" in ferrous bromide, indicating it refers to iron(II) ions.
  • One participant admits to not being a chemist and expresses uncertainty about some of the answers, suggesting that more knowledgeable individuals may provide assistance.
  • Links to external resources are shared for further guidance on naming and writing formulas.
  • Another participant states that barium nitrate is not BaNO3, but does not clarify what the correct formula is.

Areas of Agreement / Disagreement

There is no consensus on many of the names and formulas provided, with multiple competing views and corrections offered throughout the discussion. Participants express differing opinions on the correct naming conventions and formulas for various compounds.

Contextual Notes

Some participants demonstrate confusion over the periodic table symbols and the naming conventions for compounds, leading to incorrect assumptions and formulations. There are also references to systematic methods for naming that are not fully explored in the discussion.

Who May Find This Useful

Students learning about chemical nomenclature and those seeking clarification on writing formulas for inorganic compounds may find this discussion beneficial.

chemzz
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Name the following :ZnI2, BrF, FeSO3, CaH2, BaHPO3,CuNO3, AgIO, SO2

write the correct formula of these: zinc sulphate, barium nitrate, gold(III)nitrate, barium chloride, mercurous nitrate, antimony(V)cloride, ferrous bromide, calcium carbonate and hydrobromic acid.


i have attempted them as aswell...
ok...so i got these...
ZnI2 - Zinc Iodide
BrF-Barium Floride
FeSO3- Iron sulphite
CaH2- Calcium hyroxide
BaHPO3-Barium hypophosphate
CuNO3- Copper Nitrate
AgIO2- Gold(II)Idoxide
SO2- Sulphide

For the formulas i got...
zinc sulphate- ZnSO3
barium nitrate-BaNO3
gold(III)sulpahte- AgSO3
barium chloride- BaCl
mercurous nitrate- i don't get this one!
antimony (V) cloride- AtCl5
ferrous bromide- FeBr
calcium carbonate- CaCO3
hydrobromic acid- HBO3
 
Last edited:
Physics news on Phys.org
here u go...:)
 
chemzz said:
Name the following :ZnI2, BrF, FeSO3, CaH2, BaHPO3,CuNO3, AgIO, SO2

write the correct formula of these: zinc sulphate, barium nitrate, gold(III)nitrate, barium chloride, mercurous nitrate, antimony(V)cloride, ferrous bromide, calcium carbonate and hydrobromic acid.i have attempted them as aswell...
ok...so i got these...
ZnI2 - Zinc Iodide
BrF-Barium Floride
What is Br the symbol for? (It's not barium)
FeSO3- Iron sulphite
CaH2- Calcium hyroxide
No, calcium hydroxide is Ca(OH)2. The formula you are trying to name does not have the oxygen in, and so is calcium hydride.
BaHPO3-Barium hypophosphate
I'm not sure about this one.
CuNO3- Copper Nitrate
correct
AgIO2- Gold(II)Idoxide
Well, Ag is silver. To be honest, I don't know this one either!
SO2- Sulphide
That's not correct. What is CO2? Can you tell from this what SO2 is?

For the formulas i got...
zinc sulphate- ZnSO3
No. You seen to be getting confused with the oxyanions. Compounds ending in SO4 are sulphates; compounds ending in SO3 are sulphites.
barium nitrate-BaNO3
correct
gold(III)sulpahte- AgSO3
The chemical symbol for Gold is Au. Also, I'm sure the question says gold(III) nitrate. What does the III in brackets mean?
barium chloride- BaCl
No, your charges on this compound don't balance. Look at which groups each element is in in the periodic table.
mercurous nitrate- i don't get this one!
I think mercurous means the 1+ ion of mercury.
antimony (V) cloride- AtCl5
At is astatine-- check your periodic table!
ferrous bromide- FeBr
Ferrous means iron(II) ions
calcium carbonate- CaCO3
correct
hydrobromic acid- HBO3
B is no the symbol for bromine. Do you know the formula for hydrochloric acid? If so, can you get from this the formula for hydrobromic acid?[And, for the record, I'm not a chemist, and haven't taken chemistry for quite a while-- that's why I don't know the answres to some of the questions! Someone who does know them will be along soon, I'm sure!]
 
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Barium nitrate is not BaNO3.

Chemzz, it looks like you're guessing many of these. There's a systematic way to do these that you need to learn first.

See the link in the above post, as well as http://www.ausetute.com.au/wriiform.html
 
Gokul43201 said:
Barium nitrate is not BaNO3.
Sorry, it's not-- my bad :blushing:
 
Br stands for bromine and B stands for boron
 
Barium biphosphite
 
hi. I'm a student that doesn't understand how to write the formulas to compounds. if you could help me, please do. thanks.
 

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