11. Bonding & Molecular Structure
Chemical Bonds
02:15
Practice this topic
- Multiple Choice
The strength of an ionic bond comes principally from:
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Which of the following is not a physical property attributed to metallic bonding?
1898views13rank - Multiple Choice
Which of the following statements is true?
2823views20rank1comments - Multiple ChoiceWhich best describes metallic bonding?1749views
- Textbook QuestionThe compounds below are paired with a type of bonding. Which type of bonding is incorrectly classified? (LO 7.5) (a) Rb2O (polar covalent) (b) SO2 (polar covalent) (c) O3(nonpolar covalent)(d) KBr (ionic) (e) HF (polar covalent)667views1rank
- Textbook QuestionWhich compound is a solid at room temperature? (LO 7.8)(a) H2O(b) Na2S (c) SO3 (d) Cl2920views
- Textbook Question
Energy is required to remove two electrons from Ca to form Ca2+, and energy is required to add two electrons to O to form O2 - . Yet CaO is stable relative to the free elements. Which statement is the best explanation? (a) The lattice energy of CaO is large enough to overcome these processes. (b) CaO is a covalent compound, and these processes are irrelevant. (c) CaO has a higher molar mass than either Ca or O. (d) The enthalpy of formation of CaO is small. (e) CaO is stable to atmospheric conditions.
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(b) A substance, XY, formed from two different elements, melts at −33 °C. Is XY likely to be a covalent or an ionic substance?
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