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Q17. Which of the following reactions is an oxidation-reduction reaction? A. 2Na+ 2H₂O- 2NaOH + H₂ C. H₂S+ Ca(OH)2 CaS + 2H₂O 1 B. Na2S+CaCl2- CaS + 2NaCl D. NH4OH + HBr NH4Br + H₂O -

Q17. Which of the following reactions is an oxidation-reduction reaction? A. 2Na+ 2H₂O- 2NaOH + H₂ C. H₂S+ Ca(OH)2 CaS + 2H₂O 1 B. Na2S+CaCl2- CaS + 2NaCl D. NH4OH + HBr NH4Br + H₂O -

Chemistry
Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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Q17. Which of the following reactions is an oxidation-reduction reaction? A. 2Na+ 2H₂O- 2NaOH + H₂ C. H₂S+ Ca(OH)2 - 1 CaS + 2H₂O Q18. The electron geometry and hybridization of BrO3¹ respectively are? A. Trigonal planer, sp² C. Trigonal pyramidal, sp³ B. Trigonal planer, sp³ D. Tetrahedral, sp³ Q19. Determine the empirical formula of a compound contains 28 g N (14.0 g/mol) and 80 g 0 916.0 g/mol)? A. NO D. N₂O4 A. single double > triple C. triple double > single B. N₂O3 C. N₂O5 Q20. Elements with the lowest atomic size values are found in the -------- corner of the periodic table A. Lower left B. Upper right C. lower right D. Upper left Q21. Which sequence below represents the proper order of decreasing bond order? triple > double single > triple Q22. The hybridization of iodine in ICl3 is A. sp² B. sp³ B. Na₂S +CaCl2 D. NH4OH + HBr A. Pauli exclusion principle C. Building up principle Q25: The SO3²- ion has how many total valence electrons? A. 24 B. 26 Q26. The following electron configuration violates 2s 个 B. single D. double C sp³d 1-0-1-7 Q23. When you complete the Lewis structure for the molecule: This molecule has ----- single bonds ----- and ----- triple bonds. A. 3, 8, 1 B. 3, 8, 2 C. 8, 3, 1 D. 2, 10, 2 Q24. Calculate the number of moles of Fe that are produced when 0.20 mol of Al2O3 is produced in the following reaction. 2Al(s) + 3FeO(s)→3Fe(s) + Al2O3(s) B. 0.40 mol D. 0.60 mol C. 0.30 mol A. 0.20 mol ↑↓ CaS + 2NaCl NH4Br + H₂O C. 32 2p ↑↓ D. sp³d² T D. 36 ↑↓ B. Hund's rule D. Does not violate any rule
Transcribed Image Text:Q17. Which of the following reactions is an oxidation-reduction reaction? A. 2Na+ 2H₂O- 2NaOH + H₂ C. H₂S+ Ca(OH)2 - 1 CaS + 2H₂O Q18. The electron geometry and hybridization of BrO3¹ respectively are? A. Trigonal planer, sp² C. Trigonal pyramidal, sp³ B. Trigonal planer, sp³ D. Tetrahedral, sp³ Q19. Determine the empirical formula of a compound contains 28 g N (14.0 g/mol) and 80 g 0 916.0 g/mol)? A. NO D. N₂O4 A. single double > triple C. triple double > single B. N₂O3 C. N₂O5 Q20. Elements with the lowest atomic size values are found in the -------- corner of the periodic table A. Lower left B. Upper right C. lower right D. Upper left Q21. Which sequence below represents the proper order of decreasing bond order? triple > double single > triple Q22. The hybridization of iodine in ICl3 is A. sp² B. sp³ B. Na₂S +CaCl2 D. NH4OH + HBr A. Pauli exclusion principle C. Building up principle Q25: The SO3²- ion has how many total valence electrons? A. 24 B. 26 Q26. The following electron configuration violates 2s 个 B. single D. double C sp³d 1-0-1-7 Q23. When you complete the Lewis structure for the molecule: This molecule has ----- single bonds ----- and ----- triple bonds. A. 3, 8, 1 B. 3, 8, 2 C. 8, 3, 1 D. 2, 10, 2 Q24. Calculate the number of moles of Fe that are produced when 0.20 mol of Al2O3 is produced in the following reaction. 2Al(s) + 3FeO(s)→3Fe(s) + Al2O3(s) B. 0.40 mol D. 0.60 mol C. 0.30 mol A. 0.20 mol ↑↓ CaS + 2NaCl NH4Br + H₂O C. 32 2p ↑↓ D. sp³d² T D. 36 ↑↓ B. Hund's rule D. Does not violate any rule
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Oxidation-reduction reactions are those in which Oxidation and reduction both occur.

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