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문제 50a
Determine the molecular and empirical formulas of the following: (a) the organic solvent benzene, which has six carbon atoms and six hydrogen atoms
문제 50b
Determine the molecular and empirical formulas of the following: (b) the compound silicon tetrachloride, which has a silicon atom and four chlorine atoms and is used in the manufacture of computer chips
문제 51
How many hydrogen atoms are in each of the following: (a) C2H5OH? (b) Ca(C2H5COO)2? (c) (NH4)3PO4?
문제 52a
How many of the indicated atoms are represented by each chemical formula: (a) carbon atoms in C4H9COOCH3
문제 52b,c
How many of the indicated atoms are represented by each chemical formula: (b) oxygen atoms in Ca(ClO3)2 (c) hydrogen atoms in (NH4)2HPO4?
문제 53
Write the molecular and structural formulas for the compounds represented by the following molecular models:
문제 54
Write the molecular and structural formulas for the compounds represented by the following models:
문제 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+
문제 56
Fill in the gaps in the following table: Symbol 133Cs+ Protons 35 15 Neutrons 46 16 30 Electrons 18 20 Net charge 1- 5+
문제 57
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: (a) Be (b) Rb (c) As (d) In (e) At.
문제 58a,b,c,d
Using the periodic table, predict the charge of the most stable ion of the following elements: (a) Li (b) Ba (c) Po (d) I
문제 58e
Using the periodic table, predict the charge of the most stable ion of the following elements: (e) Sb.
문제 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
문제 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
문제 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.
문제 60b
The most common charge associated with selenium is 2-. Indicate the chemical formulas you would expect for compounds formed between selenium and (b) lithium
문제 61a
Predict the chemical formulas of the ionic compound formed by (a) Fe3+ and OH-
문제 61b
Predict the chemical formulas of the ionic compound formed by (b) Cs+ and NO3
문제 61c
Predict the chemical formulas of the ionic compound formed by (c) V2+ and CH3COO-
문제 61d
Predict the chemical formulas of the ionic compound formed by (d) Li+ and PO43-
문제 61e
Predict the chemical formulas of the ionic compound formed by (e) In3+ and O2-.
문제 62a,b
Predict the chemical formulas of the compounds formed by the following pairs of ions: (a) Cr3+ and CN- (b) Mn2+ and ClO4-
문제 62c
Predict the chemical formulas of the compounds formed by the following pairs of ions: (c) Na+ and Cr2O72-
문제 62d
Predict the chemical formulas of the compounds formed by the following pairs of ions: (d) Cd2+ and CO32-
문제 62e
Predict the chemical formulas of the compounds formed by the following pairs of ions: (e) Ti4+ and O2-.
문제 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.
문제 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-
문제 65a
Predict whether each of the following compounds is molecular or ionic: (a) HClO4
문제 65b,c,d
Predict whether each of the following compounds is molecular or ionic: (b) CH3OCH3 (c) Mg(NO3)2 (d) H2S
문제 65e
Predict whether each of the following compounds is molecular or ionic: (e) TiCl4