What is the Roman numeral that should be used in the following: silver (_______) sulfide? A. No Roman numeral should be used here. B. I C. III D. II
Answers
Answer: The correct answer is Option B.
Explanation: The compound given to us is . To write the IUPAC name for this compound, we need to follow some rules:
1. First write the name of the cation with its oxidation state in roman numbers.
2. Then write the name of the anion which may be a polyatomic ion or a non-metal.
3. The anion is used with a suffix '-ide'. Example: For chlorine, the anion would be named as chloride, for sulfur, the anion would be sulfide.
For the given compound, 2 silver atoms are needed to neutralize the charge on 1 sulfur atom.
Hence, the oxidation number of silver atom is '1'. So, the IUPAC name for the compound will be silver (I) sulfide.
Therefore, the correct option is B.
The correct way of writing this would be silver(I) sulfide, but silver sulfide without the (I) is also OK because it isn't always writte, nor is it necessary to write the (I).
Related Questions
An article about half-lives describes a daughter isotope. What is a daughter isotope?
A nondirectional alternative hypothesis claims that no difference will be found between the research variables.a. Trueb. False
How would you prepare 2.5 L of a 0.800M solution of KNO3?
What was the main reason the Federalists wantedto replace the Articles of Confederation?(1) The president did not have the power to vetolegislation.(2) The legislative branch enacted an unfair taxprogram.(3) The Supreme Court refused to payRevolutionary War debts.(4) The national government was too weak tosolve the nation’s problems.
Answers
I hope this helps. Let me know if anything is unclear.
Answers
Answers
I hopes this helps
Scientists continue to find new information and better technology.
Society is dissatisfied with the current weather models
Funding for research will continue to be available
Answers
Answers
Answer: Na⁺, SO₄ ²⁻.
Justification:
This is just a part of a bigger question.
But the instructions are complete to construct the ions.
The first ion requested is the sodium ion.
The symbol of sodium is Na.
When an electron is removed from the neutral atom, the atom wil result with an excess of protons, which translates onto an excess of positive charge.
Then, to show the new particle you must add a positve sign (+) in the form of superscript.
That is why you write Na⁺. By the way, a positive ion is named cation.
Regarding sulfate ion, it comes from the sulfuric acid, when you remove the two hydrogen atoms, each with a positive charge, then the sulfate ion will stand with a negative charge of 2.
The charge is told to belong to the entire ion, not a particular atom, soy you wirte it with the 2- symbol as a superscript for the entire species:
SO₄ ²⁻. A negative ions is called anion.
The answer, then, is: Na⁺, SO₄ ²⁻.
Writing the ion: Na⁺,SO₄²⁻
Further explanation
Ionic compounds consisting of cations (ions +) and anions (ions -)
The naming is preceded by the cation then the anion with the -ide suffix added
Generally for this ion compound consists of metal elements as cations and non-metals as anions
Metal: cation, positively charged.
Nonmetal: negative anion.
The anion cation's charge is crossed
Example:
Fe₂S₃
Fe charge = 3+
S charge = 2-
The writing of the ionic charge is placed as a superscript behind the molecule/ atom, and the number is written before the positive or negative sign. For a single charge, there is no need to write the number
Example
Cl⁻ (single charge)
Mg²⁺ not Mg⁺²
For the element Na symbol which is group 1A and releases one electron, the symbol writing would be: Na⁺(single charge)
For polyatomic ions, the superscript charge is written after the subscript on the polyatomic element, so it becomes SO₄²⁻
These two ions when combined and bind to Na₂SO₄ (The anion cation's charge is crossed)
if written separately as Na⁺, SO₄²⁻
Learn more
the chemical formula for each ionic compound.
two functional groups that contain ionic charges
Binary ionic compounds
Keywords: chemical compound, the naming of chemical compounds