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Problem 54
Write the molecular and structural formulas for the compounds represented by the following models:
Problem 55
Fill in the gaps in the following table: Symbol 59Co3+ Protons 34 76 80 Neutrons 46 116 120 Electrons 36 78 Net charge 2+
Problem 56
Fill in the gaps in the following table:
Symbol 31P3-
Protons 34 50
Neutrons 45 69 118
Electrons 46 76
Net charge 2- 3+
Problem 57c
Each of the following elements is capable of forming an ion in chemical reactions. By referring to the periodic table, predict the charge of the most stable ion of each: c. K
Problem 58d
Using the periodic table, predict the charge of the most stable ion of the following elements: d. Br
Problem 58e
Using the periodic table, predict the charge of the most stable ion of the following elements: e. Se
Problem 59a,b
Using the periodic table to guide you, predict the chemical formula and name of the compound formed by the following elements: (a) Ga and F (b) Li and H
Problem 59c
Using the periodic table to guide you, predict the chemical formula and name of the compound formed by the following elements: (c) Al and I
Problem 59d
Using the periodic table to guide you, predict the chemical formula and name of the compound formed by the following elements: (d) K and S.
Problem 60b
The most common charge associated with scandium in its compounds is . Indicate the chemical formulas you would expect for compounds formed between scandium and b. sulfur
Problem 61a
Predict the chemical formula for the ionic compound formed by (a) Ca2+ and Br-
Problem 61b
Predict the chemical formula for the ionic compound formed by (b) K+ and CO32-
Problem 61c
Predict the chemical formula for the ionic compound formed by (c) Al3+ and CH3COO-
Problem 61d
Predict the chemical formula for the ionic compound formed by (d) NH4+ and SO42-
Problem 61e
Predict the chemical formula for the ionic compound formed by (e) Mg2+ and PO43-.
Problem 62b
Predict the chemical formulas of the compounds formed by the following pairs of ions: (b) Fe3+ and O2-
Problem 62c
Predict the chemical formulas of the compounds formed by the following pairs of ions: (c) Hg22+ and CO32-
Problem 62d
Predict the chemical formulas of the compounds formed by the following pairs of ions: (d) Ca2+ and ClO3-
Problem 62e
Predict the chemical formulas of the compounds formed by the following pairs of ions: (e) NH4+ and PO43-.
Problem 63
Complete the table by filling in the formula for the ionic compound formed by each pair of cations and anions, as shown for the first pair. Ion K+ NH4+ Mg2+ Fe3+ Cl- KCl OH- CO32- PO43-
Complete the first row of the table.
Complete the second row of the table.
Complete the third row of the table.
Complete the fourth row of the table.
Problem 64
Complete the table by filling in the formula for the ionic compound formed by each pair of cations and anions, as shown for the first pair. Ion Na+ Ca2+ Fe2+ Al3+ O2- Na2O NO3- SO42- AsO43-
Problem 65a
Predict whether each of the following compounds is molecular or ionic: (a) B2H6
Problem 65b
Predict whether each of the following compounds is molecular or ionic: (b) CH3OH
Problem 65e
Predict whether each of the following compounds is molecular or ionic: (e) CsBr
Problem 65f
Predict whether each of the following compounds is molecular or ionic: (f) NOCl
Problem 65h
Predict whether each of the following compounds is molecular or ionic: (h) Ag2SO4.
Problem 66a
Predict whether each of the following compounds is molecular or ionic. a. PF5
Problem 66b
Predict whether each of the following compounds is molecular or ionic. b. NaI
Problem 66d
Predict whether each of the following compounds is molecular or ionic. d. Ca(NO3)2
Problem 66e
Predict whether each of the following compounds is molecular or ionic. e. FeCl3