
Concept explainers
(a)
Interpretation:
The more stable species has to be identified from the given species.
Concept Introduction:
Features that decrease the predicted stability:
- An atom with an incomplete octet.
- A negative charge that is not on the most electronegative atom.
- A positive charge on that is on an electronegative atom.
- Charge separation.
Resonance is an electron displacement effect for stabilizing a molecule through delocalization of bonding electrons in the pi orbital.
Delocalized electrons stabilize a compound. The extra stability gains from having delocalized electrons are called resonance stabilization or resonance energy.
(b)
Interpretation:
The more stable species has to be identified from the given species.
Concept Introduction:
Features that decrease the predicted stability:
- An atom with an incomplete octet.
- A negative charge that is not on the most electronegative atom.
- A positive charge on that is on an electronegative atom.
- Charge separation.
Resonance is an electron displacement effect for stabilizing a molecule through delocalization of bonding electrons in the pi orbital.
Delocalized electrons stabilize a compound. The extra stability gains from having delocalized electrons are called resonance stabilization or resonance energy.

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Chapter 7 Solutions
Essential Organic Chemistry (3rd Edition)
- 35) Complete the following equation by drawing the line the structure of the products that are formed. Please note that in some cases more than one product is possible. You must draw all possible products to recive full marks! a. ethanol + 2-propanol + H2SO4 → b. OH conc. H2SO4 CH2 H3C CH + K2Cr2O7 C. d. H3C A pressure CH3 + H2 CH Pt catalystarrow_forward21) The rate of reaction depends upon: a. the concentration and nature of reactants b. the temperature of the reaction C. whether or not a catalyst was used d. all of the above 22) A Maxwell-Boltzmann curve shows the distribution of molecular energies in a reaction system. When the temperature in this system is increased, the peak is a. higher and further to the right. b. higher and further to the left. c. lower and further to the right. d. lower and further to the left. 23) Which of the following correctly describes the reaction represented by the reaction below? CaCO3 (s) + energy → CaO (s) + CO2 (g) a. It is exothermic and the potential energy is greater in the reactants than the products. b. c. It is exothermic and the potential energy is greater in the products than the reactants. It is endothermic and the potential energy is greater in the products than the reactants. d. It is endothermic and the potential energy is equal for the products and reactants.arrow_forwardpls helparrow_forward
- 27) Draw the energy level diagram and write the full and shorthand electron configuration for a neutral sulfur atom.arrow_forwardIndicate whether these compounds are isomers, enantiomers, or tautomers. OCH OCH محمد ممدarrow_forward30) Substance A to E below are listed with several of their properties. The identities of the substances are identified in random order below: Iron, ethane, ethanol, sodium nitrate, graphite First classify each substance as either a polar covalent compound, non-polar covalent compound, ionic compound, metallic solid, or network solid. Write your predictions in the sixth coloumn of the chart, under "type of substance." Then, identify the identity of the substance in the last coloumn. Substance Melting Point Boiling Point Solubility in H₂O Electrical Conductivity Type of Substance Identity of Substance (°C) (°C) as: Solid, Liquids, Solution A -182 -88 Insoluble No/No/- B 1538 2862 Insoluble Yes/Yes/- C 308 380 Soluble Yes/Yes/Yes Ꭰ 3456 Insoluble No/-/- E -114 78 Soluble No/No/Noarrow_forward
- pls helparrow_forward28) Explain the process of galvanization. In your description, make sure to explain what metal is usually used for galvanization and why this metal used.arrow_forward29) Complete the following table Molecule H₂O NH3 Lewis Dot Diagram VSEPR Diagram Name of VSEPR Shapearrow_forward
- 12) What is the best name to describe the shape of water molecule? a. Angular b. C. Tetrahedral Octahedral d. Trigonal pyramidal 13) Network solids are distinguished from metallic crystals in that: a. Network solids have charged ions, while metallic crystals do not. b. Network solids are composed of molecules, while metallic crystals only have one type of atom. C. Network solids are composed of non-metals. d. Network solids have much lower boiling points.arrow_forwardpls helparrow_forward24) Who suggested the first model of the atom that included more than one orbit for electrons? Dalton a. b. Thomson C. Rutherford d. Bohr 25) Which of the following compounds would be capable of hydrogen bonding? a. Ethanol b. Hydrogen Sulfide C. Ethane d. Carbon Dioxidearrow_forward
- Living By Chemistry: First Edition TextbookChemistryISBN:9781559539418Author:Angelica StacyPublisher:MAC HIGHER
