Concept explainers
What is the Lewis structure for the compound that forms between K and S?
a.
b.
c.
d.
E
Trending nowThis is a popular solution!
Chapter 10 Solutions
Introductory Chemistry (5th Edition) (Standalone Book)
- Bond Enthalpy When atoms of the hypothetical element X are placed together, they rapidly undergo reaction to form the X2 molecule: X(g)+X(g)X2(g) a Would you predict that this reaction is exothermic or endothermic? Explain. b Is the bond enthalpy of X2 a positive or a negative quantity? Why? c Suppose H for the reaction is 500 kJ/mol. Estimate the bond enthalpy of the X2 molecule. d Another hypothetical molecular compound, Y2(g), has a bond enthalpy of 750 kJ/mol, and the molecular compound XY(g) has a bond enthalpy of 1500 kJ/mol. Using bond enthalpy information, calculate H for the following reaction. X2(g)+Y2(g)2XY(g) e Given the following information, as well as the information previously presented, predict whether or not the hypothetical ionic compound AX is likely to form. In this compound, A forms the A+ cation, and X forms the X anion. Be sure to justify your answer. Reaction: A(g)+12X2(g)AX(s)The first ionization energy of A(g) is 400 kJ/mol. The electron affinity of X(g) is 525 kJ/mol. The lattice energy of AX(s) is 100 kJ/mol. f If you predicted that no ionic compound would form from the reaction in Part e, what minimum amount of AX(s) lattice energy might lead to compound formation?arrow_forwardWrite Lewis structures that obey the octet rule for each of the following. a. HCN b. PH3 c. CHCl3 d. NH4+ e. H2CO f. SeF2 g. CO2 h. O2 i. HBr Except for HCN and H2CO, the first atom listed is the central atom. For HCN and H2CO , carbon is the central atom.arrow_forwardWrite the Lewis structure for each molecule.a. CH2O b. C2Cl4arrow_forward
- Write an appropriate Lewis structure for each compound. Make certain to distinguish between ionic and molecular compounds.a. BI3 b. K2Sc. HCFO d. PBr3arrow_forwardWhich of the molecules and polyatomic ions cannot be adequately described using a single Lewis structure? A.O3 B.HCN C.CO2−3 D.OF2 E.CH2Cl2 F.NH+4arrow_forwardWhich of the following compounds have a covalent molecular structure?A. MgBr2 B. K2O C. SO3 D. NaIarrow_forward
- Draw the Lewis structure (with formal charges) of the chemical species: 1. CINO2 (N is the central atom) 2. CO3^2- 3. NO2- 4. SO3 5. BrNO2 (N is the central atom) 6. HCO3- (H is bonded to one of the O's) 7. SeO2 8. HC2O4- (each C has two O atoms and H is on one of the O's) 9. HNO3 (H is bonded to one of the O's) 10. CH3NO2 11. HCO2- (H and both O's are bonded to C)arrow_forwardConsider an ion with the symbol Z- and the electronic configuration 1s22s22p63s23p6. a. What is the group number of the element Z?b. What is the element Z?c. What is the Lewis symbol of this element?d. What is the formula of the compound formed from a nickel(II) ion and Z?arrow_forward2. Avogadro does not "waste" his time drawing a Lewis structure before determining the shape of PF3. He thinks that the shape of PF3 must be trigonal planar because there are three fluorine atoms bonded to the central phosphorus atom. a. Draw the Lewis structure for PF3. b. Was Avogadro's answer for the shape of a PF3 molecule correct? Explain c. Why is it important to draw the Lewis structure for a molecule before identifying the shape of the molecule? 3. Draw the Lewis structure of ozone, O3. Describe why ozone has a bent shape instead of a linear shape.arrow_forward
- 4. Draw the Lewis dot structures for: (Note: make sure it satisfies the octet rule) a. NI3 b. CS2 c. N₂F2 d. CH₂Cl2 5. a. Which bond is more polar, H-Cl or H-O? b. Which of the following bonds is the most polar, that is, has the greatest ionic character: H-Br, N-H, N-O, P-Cl? 6. Write the formulas and names for the compounds of the following ions: 0²- F p3- K+ Ga³+arrow_forward30. Select the correct Lewis structure for SRF2, which is an ionic compound. 1- 1- A. Sr2+ В. Sr C. Sr D. Sr Е. None of the abovearrow_forward1. Determine the Lewis structure, shape, and polarity of the following molecules a. BrO2-, bromite ion b. BrO3-, bromate ion c, Cl207, dichlorine heptoxide 2. Write all the valid Lewis structures of bromate ion.arrow_forward
- General Chemistry - Standalone book (MindTap Cour...ChemistryISBN:9781305580343Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; DarrellPublisher:Cengage LearningChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage Learning
- Chemistry: An Atoms First ApproachChemistryISBN:9781305079243Author:Steven S. Zumdahl, Susan A. ZumdahlPublisher:Cengage LearningIntroductory Chemistry: A FoundationChemistryISBN:9781337399425Author:Steven S. Zumdahl, Donald J. DeCostePublisher:Cengage Learning