Concept explainers
(a)
Interpretation:
Lone pairs should be added where needed and the total number of valence electrons in glycine should be counted.
Concept Introduction:
Valence electrons are the electrons reside in valence shell of an atom and valence electrons are the ones which participate in bonding. In main group elements, group number equals to the number of valence electrons. The sum gives the total number of valence electrons in a molecule.
(b)
Interpretation:
The shape around the four indicated atoms should be determined.
Concept Introduction:
To determine the shape around a given
(c)
Interpretation:
All polar bonds in glycine should be labeled.
Concept Introduction:
The electronegativity difference can be used to differentiate bonds as polar, polar covalent and ionic bonds in different compounds.
If the electronegativity difference between two atoms is less than 0.5, the bond is nonpolar in which electrons are equally shared. If the electronegativity difference is between 0.5 − 1.9, the bond is polar covalent, in which electrons are unequally shared, the electron density is more towards electronegative atom. For electronegativity difference more than 1.9, the bond is ionic, in which electrons has been transferred from the less electronegative atom to more electronegative atom.
(e)
Interpretation:
Whether the glycine is a polar molecule should be determined.
Concept Introduction:
Polarity of a molecule depends on the individual bonds and the overall shape. If a molecule has no polar bonds, then the molecule is nonpolar. If the molecule has one polar bond, then the molecule is considered to be polar. If a molecule has more than one polar bond, the shape of the molecule determines the polarity of the molecule. If the bond dipoles do not cancel, the molecule is polar. If they get cancelled, the molecule is non-polar.
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General, Organic, and Biological Chemistry - 4th edition
- Draw Lewis structures showing all valence electrons for these molecules. (a) C2H6 (b) CS2 (c) HCNarrow_forwardPredicting whether molecules are polar or onpo Decide whether each molecule or polyatomic ion is polar or nonpolar. If the molecule or polyatomic ion is polar, write the chemical symbol of the atom closest to the negative side. For example, if the molecule were HCl and you decided the hydrogen atom was closest to the negative side of the molecule, vou'd enter "H" in the last column of the table. atom closest to polar or nonpolar? molecule or polyatomic ion negative side O polar HCN O nonpolar O polar SIF, nonpolar polar HCL O nonpolar Explanation Check © 2021 McGraw-Hill Education. All Rights Reserved. Terms of Use Privacy Accessibility Ov I 11:31 acer ied ned pag din heme page up esc 2$ % & %23 * backspace delete 3 5 7 8 9 tab e y u Potesarrow_forwardDecide whether each molecule or polyatomic ion is polar or nonpolar. If the molecule or polyatomic ion is polar, write the chemical symbol of the atom closest to the negative side. For example, if the molecule were HCl and you decided the hydrogen atom was closest to the negative side of the molecule, you'd enter "H" in the last column of the table. molecule or polyatomic ion polar or noпpolar? atom closest to negative side O polar O nonpolar O polar H,S O nonpolar O polar 02 O nonpolar Explanation Check O2022 McGraw Hill LLC. Al Rights Reserved. Terms of Use Privacy Center Accessibility IIarrow_forward
- O ELECTRONIC STRUCTURE AND CHEMICAL BONDING Predicting whether molecules are polar or nonpolar Decide whether each molecule or polyatomic ion is polar or nonpolar. If the molecule or polyatomic ion is polar, write the chemical symbol of the atom closest to the negative side. For example, if the molecule were HCl and you decided the hydrogen atom was closest to the negative side of the molecule, you'd enter "H* in the last column of the table. molecule or polar or nonpolar? atom closest to polyatomic ion negative side O polar O nonpolar Cs2 попроlar O polar NH3 nonpolar polar HCl O nonpolar Explanation Check 02022 McGraw Hill LLC. AN Rights Reserved. Terms of Use I Privacy Center Accessibility F9 F10 F11 F12 Finder F4 F5 F6 F7 F8 DeX F2 APP2 F3 APP3 F1 Esc APP1- II ! @ # $ % & Bac %3D 4. 7 1arrow_forwardDecide whether each molecule or polyatomic ion is polar or nonpolar. If the molecule or polyatomic ion is polar, write the chemical symbol of the atom closest to the negative side. For example, if the molecule were HCl and you decided the hydrogen atom was closest to the negative side of the molecule, you'd enter "H" in the last column of the table. molecule or polyatomic ion CIF OCS CC14 polar or nonpolar? polar nonpolar polar nonpolar polar nonpolar X atom closest to negative side 0 0 Śarrow_forwardELECTRONIC STRUCTURE AND CHEMICAL BONDING Predicting whether molecules are polar or nonpolar Decide whether each molecule or polyatomic ion is polar or nonpolar. If the molecule or polyatomic ion is polar, write the chemical symbol of the atom closest to the negative side. For example, if the molecule were HCl and decided the hydrogen atom was closest to the negative side of the molecule, you'd enter "H" in the last column of the table. molecule or polyatomic ion CCIA OCS CIF polar or nonpolar? Opolar nonpolar polar nonpolar polar nonpolar X atom closest to negative side 0/5 Śarrow_forward
- CHEMICAL BONDING Predicting whether molecules are polar or nonpolar Decide whether each molecule or polyatomic ion is polar or nonpolar. If the molecule or polyatomic ion is polar, write the chemical symbol of the atom closest to the negative side. For example, if the molecule were HCl and you decided the hydrogen atom was closest to the negative side of the molecule, you'd enter "H" in the last column of the table. molecule or polyatomic ion polar or nonpolar? atom closest to negative side O polar SiF 4 O nonpolar O polar HI O nonpolar O polar H,S O nonpolar Explanation Check IIIarrow_forward2. A) What is the Chemical Formula and number of unshared electron PAIRS in the skeletal structure below? B) Draw the Lewis Structure and for each bond in the molecule, indicate if the bond is polar or non-polar. Use the +-> notation to show the direction of polarity (arrow pointing to 6-) for all polar bonds. For non- polar bonds, put NP in a small circle next to that bond. HS OHarrow_forwardDecide whether each molecule or polyatomic ion is polar or nonpolar. If the molecule or polyatomic ion is polar, write the chemical symbol of the atom closest to the negative side. For example, if the molecule were HCI and you decided the hydrogen atom was closest to the negative side of the molecule, you'd enter "H" in the last column of the table. molecule or polyatomic ion CH,CI N₂ CH₂O polar or nonpolar? polar O nonpolar O polar O nonpolar O polar O nonpolar X atom closest to negative side i 0 0 0arrow_forward
- Uše the diagram to answer the question. H C Na• Hydrogen Carbon Sodium Nitrogen Oxygen Chlorine Bonds When one oxygen atom joins with another oxygen atom forming a molecule of oxygen gas, how many valence electrons does each oxygen atom have to share with the other? O Each oxygen atom shares ons with the other, forming a triple bond. O Each oxygen atom shares 2 electrons with the other, forming a double bond. O Each oxygen atom shares 1 electron with the other, forming a single bond. O Oxygen atoms would never bond by sharing electrons. 1 4. 8. 9. 10 O Type here to search 近arrow_forwardUse the Molecular Polarity Simulation to complete the following. Effect of Molecular Geometry on Polarity For each molecule: Sketch each molecule as shown in the simulation. Include arrows to show the bond dipoles as well as a molecular dipole (if present). Circle polar or nonpolar to indicate the polarity of the molecule. Name the molecular geometry (from Part A) H2O vs CO2 H2O CO2 polar nonpolar polar nonpolar Molecular Geometry Molecular Geometry Question 1a: How does the molecular geometry (linear vs bent) affect the molecular polarity?arrow_forwardDecide whether each molecule or polyatomic ion is polar or nonpolar. If the molecule or polyatomic ion is polar, write the chemical symbol of the atom closest to the negative side. For example, if the molecule were HCl and you decided the hydrogen atom was closest to the negative side of the molecule, you'd enter "H" in the last column of the table. molecule o polar or nonpolar? atom closest to negative side polyatomic ion O polar O nonpolar co, O polar F2 O nonpolar O polar SIFA O nonpolar Explanation Check 2021 McGraw-Hil Education. All Rights Reserved Terms of Use / Privacy Accessibiity Aa 18 18 888 F4 esc 75 &. %23 %24 8 7 3 4.arrow_forward
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