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Chapter 2: Problem 67

Name each of the following compounds: a. \(\mathrm{BaSO}_{3}\) c. \(\mathrm{KMnO}_{2}\) b. \(\mathrm{NaNO}_{2}\) d. \(\mathrm{K}_{2} \mathrm{Cr}_{2} \mathrm{O}_{7}\)

Short Answer

Expert verified
a. Barium sulfite b. Sodium nitrite c. Potassium manganate(IV) d. Potassium dichromate

Step by step solution

01

a. Name \(\mathrm{BaSO}_{3}\)

This compound is composed of barium (\(\mathrm{Ba}\)) and the polyatomic ion sulfate (\(\mathrm{SO}_{3}\)). Barium has a +2 charge and sulfate has a -2 charge. So, the compound's name is Barium sulfite.
02

b. Name \(\mathrm{NaNO}_{2}\)

This compound is composed of sodium (\(\mathrm{Na}\)) and the polyatomic ion nitrite (\(\mathrm{NO}_{2}\)). Sodium has a +1 charge and nitrite has a -1 charge. So, the compound's name is Sodium nitrite.
03

c. Name \(\mathrm{KMnO}_{2}\)

This compound is composed of potassium (\(\mathrm{K}\)) and manganese(IV) oxide (\(\mathrm{MnO}_{2}\)). Potassium has a +1 charge and manganese(IV) oxide has a -1 charge. So, the compound's name is Potassium manganate(IV).
04

d. Name \(\mathrm{K}_{2} \mathrm{Cr}_{2} \mathrm{O}_{7}\)

This compound is composed of potassium (\(\mathrm{K}\)) and the polyatomic ion dichromate (\(\mathrm{Cr}_{2} \mathrm{O}_{7}\)). Potassium has a +1 charge while dichromate has a -2 charge; hence, the compound has two potassium ions for each dichromate ion. The compound is named Potassium dichromate.

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Most popular questions from this chapter

Each of the following compounds is incorrectly named. What is wrong with each name, and what is the correct name for each compound? a. \(\mathrm{FeCl}_{3}\), iron chloride b. \(\mathrm{NO}_{2}\), nitrogen(IV) oxide c. \(\mathrm{CaO}\), calcium(II) monoxide d. \(\mathrm{Al}_{2} \mathrm{~S}_{3}\), dialuminum trisulfide

Why is calcium dichloride not the correct systematic name for \(\mathrm{CaCl}_{2} ?\)

The contributions of J. J. Thomson and Ernest Rutherford led the way to today's understanding of the structure of the atom. What were their contributions?

What are the symbols of the following nonmetals: fluorine, chlorine, bromine, sulfur, oxygen, phosphorus?

Elements in the same family often form oxyanions of the same general formula. The anions are named in a similar fashion. What are the names of the oxyanions of selenium and tellurium: \(\mathrm{SeO}_{4}{ }^{2-}, \mathrm{SeO}_{3}{ }^{2-}, \mathrm{TeO}_{4}{ }^{2-}, \mathrm{TeO}_{3}{ }^{2-} ?\)
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