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Chapter 2: Q57E (page 127)

Each of the following compounds contains a metal that can exhibit more than one ionic charge. Name these compounds:

a. Cr2O3

b. FeCl2

c. CrO3

d. TiCl4

e.CoO

f. MoS2

Short Answer

Expert verified

a. Chromium (III) oxide

b. Iron (II) chloride or ferrous chloride

c. Chromium trioxide

d. Titanium tetrachloride

e. Cobalt (II) oxide

f. Molybdenum sulfide

Step by step solution

01

Understanding the concept of ionic charges.

Generally, many metals exhibit the property of showing multiple positive charges or ionic states. This property depends upon the entity forminga bond with the metal.The metal loses its electron according to the requirement of electrons by the other entity.

For example, Iron (Fe) can show two ionic states, i.e., +2 and +3.

02

Determining the names of the compounds

(a) Cr2O3- Chromium (III) oxide

(b)FeCl2- Ferrous chloride

(c) CrO3- Chromium trioxide

(d) TiCl4- Titanium tetrachloride

(e) CoO- Cobalt Oxide

(f)MoS2- Molybdenum sulfide

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Most popular questions from this chapter

Open theBuild an Atom simulation (http://openstaxcollege.org/l/16PhetAtomBld)and click on the

Atom icon.

a. Pick any one of the first 10 elements that you would like to build and state its symbol.

b. Drag protons, neutrons, and electrons onto the atom template to make an atom of your element.

State the numbers of protons, neutrons, and electrons in your atom, as well as the net charge and mass number.

c. Click on “Net Charge” and “Mass Number,” check your answers to (b), and correct, if needed.

d. Predict whether your atom will be stable or unstable. State your reasoning.

e. Check the “Stable/Unstable” box. Was your answer to (d) correct? If not, first predict what you can do to make a Stable atom of your element, and then do it and see if it works. Explain your reasoning.

Write the empirical formula for the following compounds:

Write the symbol for each of the following ions: (a) the ion with a \(1 + \) charge, atomic number \(55,\) and mass number \(133\)(b) the ion with \(54\) electrons, \(53\) protons, and \(74\) neutrons (c) the ion with atomic number\(15,\) mass number \(31,\) and a \(3 - \) charge (d) the ion with \(24\) electrons, \(30\) neutrons, and a \(3 + \)charge

The following compounds are found in common household products. Name each of these compounds:

a. Ca(H3PO4)2

b. FeSO4

c. CaCO3

d. MgO

e. NaNO2

f. KI

Explain why the symbol for element sulfur and the formula for a molecule of sulfur differ.

See all solutions

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