Concept explainers
Interpretation:
The polar bond and the covalent single bond length have to be given. The molecular formula of a binary compound and its electron-dot formula has to be drawn.
Concept introduction:
Polar bond: polar bond in which the bonding electrons are not shared equally and spend more time near one atom than the other
Non-polar: bond or molecule in which the centers of positive and negative charge coincide
Lewis structure otherwise known as Lewis dot diagrams or electron dot structures that show the bond between atoms and lone pairs of electrons that are present in the molecule. Lewis structure represents each atom and their position in structure using the chemical symbol. Excess electrons forms the lone pair are given by pair of dots, and are located next to the atom.
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Chapter 9 Solutions
General Chemistry - Standalone book (MindTap Course List)
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- Without actually drawing the Lewis structure, determine how many valence electrons are available for covalent bonding in each of the following molecules. a. SiH4 b. NCl3 c. H2S d. Cl2Oarrow_forwardDraw Lewis symbols for the following ions. a. O2 b. S2 c. Si4 d. Clarrow_forwardDraw Lewis structures to illustrate the covalent bonding in the following diatomic molecules. a. Br2 b. HBr c. BrF d. IBrarrow_forward
- Which of the following atoms would be expected to form negative ions in binary ionic compounds and which would be expected to form positive ions: Br, Ca, Na, N, F, Al, Sn, S, Cd?arrow_forwardDraw Lewis structures to illustrate the bonding in the following molecules. In each case, there will be at least one multiple bond present in a molecule. a. COCl2: Both chlorine atoms and the oxygen atom are bonded to the carbon atom. b. C2H2Br2: The two carbon atoms are bonded to one another. Each carbon atom also has a bromine atom and a hydrogen atom bonded to it. c. C2N2: The two carbon atoms are bonded to one another, and each carbon atom also has a nitrogen bonded to it. d. CH2N2: A central carbon atom has both nitrogen atoms bonded to it. Both hydrogen atoms are bonded to one of the two nitrogen atoms.arrow_forwardThe equation for the combustion of gaseous methanol is 2 CH3OH(g) + 3 O2(g) 2 CO2(g) + 4 H2O(g) (a) Using the bond dissociation enthalpies in Table 8.8, estimate the enthalpy change for this reaction. What is the enthalpy of combustion of one mole of gaseous methanol? (b) Compare your answer in part (a) with the value of tHcalculated using enthalpies of formation data.arrow_forward
- The study of carbon-containing compounds and their properties is called organic chemistry. Besides carbon atoms, organic compounds also can contain hydrogen, oxygen, and nitrogen atoms (as well as other types of atoms). A common trait of simple organic compounds is to have Lewis structures where all atoms have a formal charge of zero. Consider the following incomplete Lewis structure for an organic compound called histidine (an amino acid), which is one of the building blocks of proteins found in our bodies: Draw a complete Lewis structure for histidine in which all atoms have a formal charge of zero.arrow_forwardMethylcyanoacrylate is the active ingredient in super glues. Its Lewis structure is In this molecule, which is the (a) weakest carbon-containing bond? (b) strongest carbon-containing bond? (c) most polar bond?arrow_forwardEach compound contains both ions and covalent bonds. Draw the Lewis structure for each compound. Show with dashes which are covalent bonds and show with charges which are ions. (a) Sodium methoxide, CH3ONa (b) Ammonium chloride, NH4Cl (c) Sodium bicarbonate, NaHCO3 (d) Sodium borohydride, NaBH4 (e) Lithium aluminum hydride, LiAlH4arrow_forward
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