Problem 1QC Problem 2QC Problem 3QC Problem 4QC Problem 5QC Problem 1PP Problem 2PP Problem 3PP Problem 4PP Problem 5PP Problem 6PP Problem 7PP Problem 8PP Problem 9PP Problem 10PP Problem 11PP Problem 1QP Problem 2QP Problem 3QP: What is a chemical bond? Problem 4QP: Describe the difference between ionic and covalent bonding. Problem 5QP: Which type of elements are most likely to form compounds using ionic bonding? Problem 6QP: Which type of elements are most likely to form compounds using covalent bonding? Problem 7QP Problem 8QP: Which of the following compounds are likely to have ionic bonds? (a)CsCl(b)CaCl2(c)OCl2(d)NBr3(e)IF5 Problem 9QP Problem 10QP Problem 13QP Problem 14QP: Which of the following compounds are likely to occur as solid at room temperature?... Problem 15QP: Predict whether each of the following substances is likely to have a relatively high or low boiling... Problem 16QP Problem 17QP: Describe how electronegativity values change going down a group in the periodic table. Problem 18QP: Compare the electronegativity of metallic and non-metallic elements. Problem 19QP: What kind of bonds are always nonpolar? Problem 20QP: Describe how to decide whether a bond is polar. Problem 21QP Problem 22QP: Using periodic trends, arrange the following atoms in order of increasing electronegativity. (a) B,... Problem 23QP Problem 24QP Problem 25QP Problem 26QP: Arrange the following bonds in order of increasing polarity. (a)HF,FF,HH,HI(b)BF,OF,CF,HF Problem 27QP: What information can be determine from Lewis symbol? Problem 28QP: What is the maximum number of valence electrons represented in the Lewis symbols of the main-group... Problem 29QP: Draw Lewis symbols showing the valence electrons of the following atoms.... Problem 30QP: Draw Lewis symbols showing the valence electrons of the following atoms.... Problem 31QP: Draw Lewis symbols showing the valence electrons of the following ions.... Problem 32QP Problem 33QP: Write a formula for each of the following ionic salts using the Lewis symbols of the ions.... Problem 34QP: Write a formula for each of the following ionic salts using the Lewis symbols of the ions.... Problem 35QP Problem 36QP Problem 37QP Problem 38QP Problem 39QP Problem 40QP: What holds ions together in a crystal lattice? Problem 41QP: Describe the sodium chloride structure shown in Figure 8.8. How many chloride ions surround each... Problem 42QP: Describe the cesium chloride structure shown in Figure 8.9. How many chloride ions surround each... Problem 43QP: Why does CaF2 have a different crystal structure than NaCl? Problem 44QP Problem 45QP: Draw the Lewis structures for O2andF2. (a) How many valence electrons are around each atoms in each... Problem 46QP: Draw the Lewis structures for I2andN2. (a) How many valence electrons are around each atoms in each... Problem 47QP: Why does hydrogen exist as a diatomic molecules? Problem 48QP: How many electrons does each hydrogen have in the H2 molecule? Problem 49QP: How many single bonds are typically formed by the following atoms? (a)H(b)N(c)F(d)Ne Problem 50QP: How many single bonds are typically formed by the following atoms? (a) B (b) O (c) I (d) C Problem 51QP: Identify a main-group element (X) could form each of the following compounds. Problem 52QP: Identify a main-group element (X) could form each of the following compounds. Problem 53QP Problem 54QP: Draw a Lewis structure for each of the following: (a)NH2OH(b)CCl4(c)C2H3Cl(d)C2Br2(e)HOCl Problem 55QP: Draw a Lewis structure for each of the following: (a)NO3(b)SO42(c)NO2(d)NO+ Problem 56QP Problem 57QP Problem 58QP Problem 59QP Problem 60QP: How is the concept of resonance consistence with the octet rule? Problem 61QP Problem 62QP: Indicate whether or not each of the following molecules or ions exhibits resonance.... Problem 63QP: Draw a Lewis structure, include the resonance forms, for each of the following molecules or ions.... Problem 64QP Problem 65QP: In HF, the hydrogen atoms shares two electrons with the fluorine atom, but has no unshared electrons... Problem 66QP: Describe the bonding in S2Cl2. The atom are connected in the order, Cl S S Cl. Why does this... Problem 67QP: Decide whether the indicated atoms obeys the octet rule. If not, indicate how the octet rule is... Problem 68QP: Decide whether the indicated atom obeys the octet rule. If not, indicate how octet rule is broken.... Problem 69QP: An atom of the following molecules does not obey the octet rule. Decide which atom violet the rule... Problem 70QP: An atom of the following molecules does not obey the octet rule. Decide which atom violet the rule... Problem 71QP Problem 72QP Problem 73QP: Draw the Lewis structure of benzene, C6H6, a cyclic compound. Problem 74QP Problem 75QP Problem 76QP Problem 77QP Problem 78QP Problem 79QP: Identify the class of class of substance for each of the following molecules. Problem 80QP Problem 81QP: Draw the Lewis structure for an aldehyde that has the molecular formula C4H8O. Problem 82QP: Draw the Lewis structure for ketone that has the molecular formula C4H8O. Problem 83QP Problem 84QP: Why are unshared pairs of electrons on a central atom not considered to be part of the molecular... Problem 85QP: Why is it important to draw Lewis structures before predicting molecular shapes? Problem 86QP: Explain how nonbonding pairs of electrons influence molecular shape. Problem 87QP: Draw each of the following geometric arrangements. (a)Â tetrahedral (b)Â trigonal planar (c) bent... Problem 88QP: In which of the following molecular shapes would you expect to find one or more unshared pairs of... Problem 89QP: Predict the parent structures of the following molecules.... Problem 90QP: Predict the parent structures of the following molecules. (a)OCS(b)FNO(c)FCN(d)HN3(e)PF3(f)SF2(g)NO2 Problem 91QP: Predict the parent structures of the following molecules.... Problem 92QP: Predict the shapes and gives approximate bond angles for the following molecules.... Problem 93QP: Predict the bond angles in the following molecules. (a)NH3(b)H2O(c)HCl(d)HCN(e)BF3(f)H2CO(g)PCl3 Problem 94QP: Predict the bond angles in the following molecules. (a)NF3(b)SO2Cl2(c)CBr4(d)F2CO(e)PH3(f)HOCl Problem 95QP Problem 96QP Problem 97QP Problem 98QP Problem 99QP: Is this the shape of NO3 or ClO3? Problem 100QP: Is this shape of
Problem 101QP: Which of the following molecules or ions have unshared electron pairs on the central atom? Problem 102QP: Which of the following molecules or ions have unshared electron pairs on the central atom? Problem 103QP: Hydrazine, N2H4, is a colorless, oily liquid that fumes in air and has an odor much like that of... Problem 104QP: Oxalic acid, H2C2O4, a poisonous colorless solid, is found in some vegetable such as spinach and... Problem 105QP: Chloropicrin, Cl3CNO2, is an insecticide that has been used against insects that attack cereals and... Problem 106QP: Fuel cell are used in many areas, such as the aerospace industry, where energy efficiency is more... Problem 107QP: Distinguish between bond polarity and molecular polarity. Problem 108QP: Why does molecular polarity depend not only on bond polarity but also on the molecule? Problem 109QP: Explain how carbon tetrachloride can have polar bonds but still be a nonpolar molecule. Problem 110QP: Explain why hydrocarbons are all essentially nonpolar substances. Problem 111QP: Are the following molecules polar or nonpolar? (a)HI(b)CHF3(c)SO2Cl2(d)PF3 Problem 112QP: Are the following molecules polar or nonpolar? aBF3(c)CH2Cl2 Problem 113QP: For each pair of molecules decide which molecule is polar and explain why it is polar while the... Problem 114QP: Explain why the first molecule of each pair is polar and second is not.... Problem 115QP Problem 116QP Problem 117QP: Which molecule, CF4orCCl2F2, is most likely to be soluble in water? Problem 118QP: Which molecule, SO2orCO2, is most likely to be soluble in water? Problem 119QP: Which of these molecules is polar? Assume the bonds are polar. Problem 120QP: Which of these molecules is polar? Assume the bonds are polar. Problem 121QP: Draw Lewis symbols showing the valence electrons of the following atoms. (a) Br (b) Pb (c) S (d) Ca... Problem 122QP: Draw Lewis symbols showing the valence electrons of the following ions.... Problem 123QP: Arrange the following atoms in order of decreasing electronegativity: Br, Cl, F, I. Problem 124QP Problem 125QP: Classify each of the following substances according to the type of bonding.... Problem 126QP: Draw a Lewis structure for each of the following. (a)HClO2(b)HClO3(c)HClO4(d)BrF3(e)ClO3 Problem 127QP Problem 128QP: Draw a Lewis structure, including the resonance forms, for each of the following molecules or ions.... Problem 129QP: Draw the Lewis structure for each of the following. Including any necessary resonance forms.... Problem 130QP: Gaseous aluminium chloride exists as a dimer, Al2Cl6, with two chlorines between the two aluminium... Problem 131QP: Describe the molecular shape of each of the following.... Problem 132QP: Describe the structure and bonding in sulfuric acid, H2SO4, and in its two ions, HSO4andSO42. Problem 133QP: Decide which of each pair of gaseous molecules is polar, and explain why that molecule is polar... Problem 134QP: Which of the following are nonpolar molecules, even though they have polar bonds?... Problem 135QP: For each pair of molecules decide which molecule is most polar and explain your answer.... Problem 136QP Problem 137QP: Predict whether each of the following substances is likely to have a relatively high or low boiling... Problem 138QP: Predict whether each of the following substances is likely to have a relatively high or low boiling... Problem 139QP Problem 140QP Problem 141QP: There are two different alcohols with the formula C3H7OH. Draw Lewis for the two alcohols. Problem 142QP: The proteins in our bodies are built from small organic molecules called acids. An amino acid is a... Problem 143QP Problem 144QP: Plastic food storage containers are often made of polypropylene. The compound used to make... Problem 145QP: Draw the Lewis structure for a ketone containing four carbon atoms and eight hydrogen atoms. Problem 146QP: Compare the molecular shape around each carbon atom and HCC bond angles in C2H6,C2H4,andC2H2. How... Problem 147QP: Which compound contains both covalent and ionic bonds? A.NaHSO4B.NaFC.HFD.NaHE.SO2Cl2 Identify the... Problem 148QP: The bonds in O3 are expected to be A. ionic because of a large difference in electronegativity. B.... Problem 149QP: Which of the following is a true statement about ionic crystal? A. The strong electrostatic forces... Problem 150QP: Which of the following bonds is most polar? A.CFB.CClC.CSD.CHE.FF For each incorrect answer that is... Problem 151QP: Which of the following always violets the octet rule? A. a molecule or ion with sulfur as the... Problem 152QP: Identify the main-group element X that could form this compound: A. C B. O C. N D. F E. B Explain... Problem 153QP: Which of the following has a Lewis structure most like that of SO32? A.SO42B.NO3C.SO3D.NF3E.CO32 Why... Problem 154QP: Which of the following has a double bond? A.N2H4B.C2H2C.C2H4D.C2H6E.N2 For each incorrect answer,... Problem 155QP: Which of the following statements about resonance is true? A. Resonance is needed when a single... Problem 156QP Problem 157QP: Which of the following molecules has a bent molecular shape with bond angles of120 ?... Problem 158QP: Which of the following molecules is polar? A.CO2B.SO2C.SO3D.BH3E.O2 Explain why the other molecules... format_list_bulleted