Concept explainers
a.
Interpretation:The given figure needs to be redrawn for a weaker bond.
Concept introduction:A plot used to show the formation of a
b.
Interpretation:The elements in the given table should be written.
Concept introduction:The smallest unit of matter that retains the chemical identity of the element is said to be an atom.
A pure substance which cannot be broken down to other smaller substances by any means that is physical or chemical is said to be an element.
A pure substance that can be separated into other smaller substances by any means that is by chemical or physical is said to be a compound.
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Chapter 1 Solutions
Organic Chemistry: Structure and Function
- For each of the following covalent bonds: (a) use the symbols δ+ and δ- to indicate the direction of polarity (if any).(a) C-F; (b) N-Br; (c) B-C; (d) Si-H(b) Rank the following covalent bonds in order of increasing polarity. (i) C-H, O-H, N-H; (ii) C-N, C-O, B-O; (iii) C-P, C-S, C-Narrow_forwardRank the bonds in each set in order of decreasing bond length and decreasing bond strength: (a) Si-F, Si-C, Si-O; (b) N=N, N-N, N=N.arrow_forwardII. The nitrogen atom has a lone pair of electrons. (A) I only (B) II only (C) Both I and II (D) Neither I nor II . In which molecule are there two distinct sets of sulfur- fluorine bond lengths? (A) SF₂ (B) SOF₂ (C) SF4 (D) SF6 2. Which species contains three sigma bonds and one pi bond? (A) PF3 (B) NH (C) C₂H₂ (D) CO32- 3. How many stereoisomers of octahedral CoCl₂(NH3)2(CN)2 are possible?arrow_forward
- Consider lisinopril, a drug used primarily in the treatment of high blood pressure, heart failure, and after heart attacks. (a) Complete the Lewis structure of lisinopril, showing all valence electrons. (b) Use the valence-shell electron-pair repulsion (VSEPR) model (Section 3.10) to predict all bond angles in lisinopril. (c) Which is the most polar bond in lisinopril? (d) Is lisinopril polar or nonpolar? (e) Is lisinopril expected to possess resonance (Section 3.9)? Explain why or why not. (f) Name the various functional groups in lisinopril. (g) What is the molecular formula of lisinopril? (h) What intermolecular forces are expected to exist between molecules of lisinopril in close proximity to one another (Section 5.7)?arrow_forwardThe strength of a covalent bond depends upon the size of the atoms and the bond order. In general short bonds are strong bonds. For each pair of covalently bonded atoms, choose the one expected to have the higher bond energy. (A) N=N (B) N-N (C) CEC (D) C=C Use the References to access important values if needed for this question. (A,B) (C,D)arrow_forwardWrite the electron configuration for the monatomic ions formed from the following elements (which form the greatest concentration of monatomic ions in seawater):(a) Cl(b) Na(c) Mg(d) Ca(e) K(f) Br(g) Sr(h) Farrow_forward
- The dipole moment of chlorine monofluoride, ClF(g), is 0.88D. The bond length of the molecule is 1.63 Å. (a) Which atomis expected to have the partial negative charge? (b) What is thecharge on that atom in units of e?arrow_forwardIn addition to ammonia, nitrogen forms three other hy-drides: hydrazine (N₂H₄), diazene (N₂H₂), and tetrazene (N₄H₄).(a) Use Lewis structures to compare the strength, length, and or-der of nitrogen-nitrogen bonds in hydrazine, diazene, and N₂.(b) Tetrazene (atom sequence H₂NNNNH₂) decomposes above 0°C to hydrazine and nitrogen gas. Draw a Lewis structure fortetrazene, and calculate ΔH°ᵣₓₙ for this decomposition.arrow_forwardUse (a) electron configuration (b) orbital diagram and (c) Lewis symbols to depict the formation of aluminum chloride from the reaction between aluminum and chlorine atoms. (d) How many electrons are transferred? (e) Which atom loses electrons in the reaction?arrow_forward
- Nat forms an “ionic bond" (i.e. an electrostatic attraction) with the CN- ion. (a) Draw the full Lewis structure of the ionic compound. Be sure to show how you have derived this. (b) Which atom in the OCN- anion is the sodium cation most likely to attract? Explain.arrow_forwardSome chemical reactions proceed by the in it ial loss or transfer of an electron to a diatomic species. Which of the molecules N2, NO. O2, C2, F2, and CN would you expect to be stabil ized by (a) the addit ion of an electron to form AB-. (b) the removal of an electron to form AB+?arrow_forwardArrange each set of bonds in order of increasing polarity, and indicate bond polarity with δ+and δ- symbols: (a) Cl-F, Br-Cl, Cl-Cl (b) P-F , Si-F, S-F and Arrange each set of bonds in order of decreasing polarity, and indicate bond polarity with a polar arrow: (a) Se-Cl, Se-F, Se-Br (b) S-B, F-B, Cl-Barrow_forward
- Introduction to General, Organic and BiochemistryChemistryISBN:9781285869759Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar TorresPublisher:Cengage LearningWorld of Chemistry, 3rd editionChemistryISBN:9781133109655Author:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCostePublisher:Brooks / Cole / Cengage Learning