(a)
Interpretation: The chemical formulas of the given compound are to be determined.
Concept Introduction: Ionic compounds are named by writing the name of the metal with its charge in Roman numerals in parentheses followed by the name of the anion. Ionic compounds are electrically neutral.
(a)
Answer to Problem 85A
The chemical formula of calcium bromide is
Explanation of Solution
Calcium is an alkaline earth metal with two positive charges and bromine is a monovalent anion. To balance the charges, two bromine binds with each calcium ion, hence the formula
(b)
Interpretation: The chemical formulas of the given compound are to be determined.
Concept Introduction: Ionic compounds are named by writing the name of the metal with its charge in Roman numerals in parentheses followed by the name of the anion. Ionic compounds are electrically neutral.
(b)
Answer to Problem 85A
The chemical formula of silver chloride is
Explanation of Solution
Silver is denoted by the symbol Ag which exists as
(c)
Interpretation: The chemical formulas of the given compound are to be determined.
Concept Introduction: Ionic compounds are named by writing the name of the metal with its charge in Roman numerals in parentheses followed by the name of the anion. Ionic compounds are electrically neutral.
(c)
Answer to Problem 85A
Aluminum carbide can be chemically represented as
Explanation of Solution
Aluminum is a trivalent cation and carbon is a tetravalent atom, they combine to form aluminum carbide. Their valences are exchanged with each other and written as the subscript to give the formula
(d)
Interpretation: The chemical formulas of the given compound are to be determined.
Concept Introduction: Ionic compounds are named by writing the name of the metal with its charge in Roman numerals in parentheses followed by the name of the anion. Ionic compounds are electrically neutral.
(d)
Answer to Problem 85A
Nitrogen dioxide can be chemically represented as
Explanation of Solution
Nitrogen dioxide contains one nitrogen atom and two oxygen atoms. It is formed by the sharing of electrons, hence the formula
(e)
Interpretation: The chemical formulas of the given compound are to be determined.
Concept Introduction: Ionic compounds are named by writing the name of the metal with its charge in Roman numerals in parentheses followed by the name of the anion. Ionic compounds are electrically neutral.
(e)
Answer to Problem 85A
The chemical formula of tin(IV) cyanide is
Explanation of Solution
From the given name tin is having a +4 charge. so to neutralize the charge four monovalent cyanide ions are needed. Hence the formula is
(f)
Interpretation: The chemical formulas of the given compound are to be determined.
Concept Introduction: Ionic compounds are named by writing the name of the metal with its charge in Roman numerals in parentheses followed by the name of the anion. Ionic compounds are electrically neutral.
(f)
Answer to Problem 85A
Lithium hydride can be represented by the chemical formula LiH.
Explanation of Solution
Lithium is an alkali metal that exists as a mono-positive ion. it binds with hydride ions to give lithium hydride with the formula LiH.
(g)
Interpretation: The chemical formulas of the given compound are to be determined.
Concept Introduction: Ionic compounds are named by writing the name of the metal with its charge in Roman numerals in parentheses followed by the name of the anion. Ionic compounds are electrically neutral.
(g)
Answer to Problem 85A
The chemical formula of strontium acetate is
Explanation of Solution
Strontium is a group of two metals that exist as a dipositive ion. it combines with two acetate ions to form strontium acetate. So the chemical formula of the compound is
(h)
Interpretation: The chemical formulas of the given compound are to be determined.
Concept Introduction: Ionic compounds are named by writing the name of the metal with its charge in Roman numerals in parentheses followed by the name of the anion. Ionic compounds are electrically neutral.
(h)
Answer to Problem 85A
The chemical formula of sodium silicate is
Explanation of Solution
A silicate ion is an anion containing one silicon atom and three oxygen atoms, having two positive charges. This charge is neutralized by two sodium ions giving the formula
Chapter 9 Solutions
Chemistry 2012 Student Edition (hard Cover) Grade 11
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