Chemistry, 02.10.2019 01:00 reagriffis24

These are a mix (maybe) of ionic and covalent compounds: name these compounds. spell sulfide with the f not the ph. if the metal is a transition metal, you will need to use roman numerals in parentheses, no space between the metal and the parentheses, e. g. iron(iii) oxide covalent compounds should follow iupac naming methods. what is the name for pbr3? phosphorus tribromide what is the name for n2o? nitrous oxide what is the name for na2s? sodium sulfide what is the name for kmno4? potassium (iv) manganate

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Answer from: ibrain856

Answer :

(a) The IUPAC name for PBr_3 is phosphorous tribromide.

(b) The IUPAC name for N_2O is dinitrogen oxide.

(d) The IUPAC name for KMnO_4 is potassium permanganate(VII).

Explanation :

The nomenclature of covalent compound is given by:

1. The less electronegative element is written first.

2. The more electronegative element is written then, and a suffix is added with it. The suffix added is '-ide'.

3. If atoms of an element is greater than 1, then prefixes are added which are 'mono' for 1 atom, 'di' for 2 atoms, 'tri' for 3 atoms and so on..

The nomenclature of ionic compounds is given by:

1. Positive ion is written first.

2. The negative ion is written next and a suffix is added at the end of the negative ion. The suffix written is '-ide'.

3. In case of transition metals, the oxidation state are written in roman numerals in bracket in front of positive ions.

(a) PBr_3 is a covalent compound because sharing of electrons takes place between phosphorous and bromine. Both the elements are non-metals and hence, will form covalent bond.

So, the IUPAC name for PBr_3 is phosphorous tribromide.

(b) N_2O is a covalent compound because sharing of electrons takes place between nitrogen and oxygen. Both the elements are non-metals and hence, will form covalent bond.

So, the IUPAC name for N_2O is dinitrogen oxide.

(c) Na_2S is an ionic compound because sodium element is a metal and sulfur element is a non-metal. The bond formed between a metal and a non-metal is always ionic in nature.

So, the IUPAC name for Na_2S is sodium sulfide.

(d) KMnO_4 is an ionic compound. The bond formed between a metal and a non-metal is always ionic in nature.

'Mn' is a transition metal and the oxidation state of 'Mn' is (+7)

The name of MnO_4 is permanganate.

So, the IUPAC name for KMnO_4 is potassium permanganate(VII).

Answer from: Quest

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Answer from: Quest

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