Concept explainers
(a)
Interpretation:
The molecular formula and the non-oxygen atom of each oxide (which forms out of second and third row elements:
Concept introduction:
Oxygen forms many oxides with groups of
(b)
Interpretation:
Electron-dot structures of each oxide should be drawn and the availability of resonance structures for any of the oxides should be determined.
Concept introduction:
Electron-dot structures are used to represent a molecule’s bonding (by lines) and lone electrons that do not participate in bonding (by dots). For some molecules, there are several valid electron-dot structures which are known as ‘resonance’ structures.
Want to see the full answer?
Check out a sample textbook solutionChapter 22 Solutions
CHEMISTRY-MASTERINGCHEMISTRY W/ETEXT
- (a) What are the common oxidation states of the halogens?(b) Give an explanation based on electron configuration for the range and values of the oxidation states of chlorine.(c) Why is fluorine an exception to the pattern of oxidation states found for the other group members?arrow_forward(b) List some properties of Group 1 elements which indicate they are all metals. (c) What valence do all Group 1 elements exhibit in their compounds? (a) Write the names and symbols of the elements of Group 2.arrow_forwardCompounds such as NaBH4, Al(BH4)3, and LiAlH4 are complex hydrides used as reducing agents in many syntheses. (a) Give the oxidation state of each element in these compounds. (b) Write a Lewis structure for the polyatomic anion in NaBH4, and predict its shape.arrow_forward
- Chlorine dioxide gas (ClO2) is used as a commercial bleachingagent. It bleaches materials by oxidizing them. In thecourse of these reactions, the ClO2 is itself reduced. (a)What is the Lewis structure for ClO2? (b) Why do you thinkthat ClO2 is reduced so readily? (c) When a ClO2 moleculegains an electron, the chlorite ion, ClO2-, forms. Draw theLewis structure for ClO2-. (d) Predict the O—Cl—O bondangle in the ClO2- ion. (e) One method of preparing ClO2is by the reaction of chlorine and sodium chlorite:Cl2(g) + 2 NaClO2(s)------>2 ClO2(g) + 2 NaCl(s)If you allow 15.0 g of NaClO2 to react with 2.00 L of chlorinegas at a pressure of 1.50 atm at 21 °C, how many gramsof ClO2 can be prepared?arrow_forwardWhich group(s) of the periodic table is (are) described byeach of the following general statements?(a) The elements form compounds of VSEPR class AX₃E.(b) The free elements are strong oxidizing agents and formmonatomic ions and oxoanions.(c) The atoms form compounds by combining with two otheratoms that donate one electron each.(d) The free elements are strong reducing agents, show only onenonzero oxidation state, and form mainly ionic compounds.(e) The elements can form stable compounds with only threebonds, but as a central atom, they can accept a pair of electronsfrom a fourth atom without expanding their valence shell.(f) Only larger members of the group are chemically activearrow_forwardWrite a Lewis structure for each of the following molecules and ions:(a) (CH3)3SiH(b) SiO44−(c) Si2H6(d) Si(OH)4(e) SiF62−arrow_forward
- Compounds such as NaBH₄, Al(BH₄)₃, and LiAlH₄ arecomplex hydrides used as reducing agents in many syntheses.(a) Give the oxidation state of each element in these compounds.(b) Write a Lewis structure for the polyatomic anion in NaBH₄,and predict its shape.arrow_forwardPredict the best choice in each of the following. You may wish to review the chapter on electronic structure for relevant examples.(a) the most metallic of the elements Al, Be, and Ba(b) the most covalent of the compounds NaCl, CaCl2, and BeCl2(c) the lowest first ionization energy among the elements Rb, K, and Li(d) the smallest among Al, Al+, and Al3+(e) the largest among Cs+, Ba2+, and Xearrow_forwardUse principles of atomic structure to answer each of the following: (1] (a) The radius of the Ca atom is 197 pm; the radius of the Ca2* ion is 99 pm. Account for the difference. (b) The lattice energy of CaO(s) is –3460 kJ/mol; the lattice energy of K20 is –2240 kJ/mol. Account for the difference. (c) Given these ionization values, explain the difference between Ca and K with regard to their first and second ionization energies. Element First lonization Energy (kJ/mol) Second lonization Energy (kJ/mol) K 419 3050 Ca 590 1140 (d) The first ionization energy of Mg is 738 kJ/mol and that of Al is 578 kJ/mol. Account for this difference.arrow_forward
- (a) Which poisonous gas is evolved when white phosphorus is heated with Cone. NaOH solution? Write the chemical equation. (b) Write the formula of first noble gas compound prepared by N. Bartlett. What inspired N. Bartlett to prepare this compound? (c) Fluorine is a stronger oxidising agent than chlorine. Why? (d)Write one use of chlorine gas.arrow_forwardConsider the following three statements about the reactivityof an alkali metal M with oxygen gas:(i) Based on their positions in the periodic table, the expectedproduct is the ionic oxide M2O.(ii) Some of the alkali metals produce metal peroxides or metalsuperoxides when they react with oxygen.(iii) When dissolved in water, an alkali metal oxide produces abasic solution.Which of the statements (i), (ii), and (iii) is or are true?(a) Only one of the statements is true.(b) Statements (i) and (ii) are true.(c) Statements (i) and (iii) are true.(d) Statements (ii) and (iii) are true.(e) All three statements are true.arrow_forward5. Use Periodic table to answer the following: (a) Which has higher ionization potential Cs or Li? Why? (b) Arrange the following elements in increasing order of valence electrons, Ca, Rb, Br and Xe.arrow_forward
- ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage LearningChemistryChemistryISBN:9781259911156Author:Raymond Chang Dr., Jason Overby ProfessorPublisher:McGraw-Hill EducationPrinciples of Instrumental AnalysisChemistryISBN:9781305577213Author:Douglas A. Skoog, F. James Holler, Stanley R. CrouchPublisher:Cengage Learning
- Organic ChemistryChemistryISBN:9780078021558Author:Janice Gorzynski Smith Dr.Publisher:McGraw-Hill EducationChemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage LearningElementary Principles of Chemical Processes, Bind...ChemistryISBN:9781118431221Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. BullardPublisher:WILEY