Solution for QID #22105: 1) What are the EDG and hybridization of the central atom in | StudyHelpMe

1) What are the EDG and hybridization of the central atom in H2CO? The number in the formula is a subscript. Optional Answers: 1. Trigonal planar; sp2 2. Tetrahedral; sp2 3. Tetrahedral; sp3 4. Trigonal planar; sp3   2. In this course, a double bond is comprised of: Optional Answers: 1. two pi bonds. 2. two sigma bonds. 3. a sigma bond and a pi bond. 4. one pi bond.   3. In this course, what types of orbitals can form pi bonds? Optional Answers: 1. Only unhybridized p orbitals. 2. Only hybrid orbitals. 3. Hybrid and unhybridized orbitals of any type. 4. Only hybridized s orbitals.   4. Which of the following choices would have the LARGEST number of pi bonds? Optional Answers: 1. A molecule with seven single bonds. 2. A molecule with three double bonds. 3. A molecule with two triple bonds.   5. A structure contains a carbon-carbon double bond with like groups on the same side of the double bond. This structure is referred to as a(n): Optional Answers: 1. formal charge. 2. resonance structure. 3. trans isomer. 4. cis isomer.   ------ 9.4   1. What is the oxidation state of chlorine in ClF3? Optional Answers: 1. -1 2. -3 3. +3 4. +1   2. Which of the following is NOT a reasonable oxidation state for phosphorus? Optional Answers: 1. +5 2. -3 3. -5 4. +3   3. What are the formal charge (FC) and oxidation state (OS) of the nitrogen atom in ammonia? Optional Answers: 1. FC = -3, OS = 0 2. FC = -3, OS = -3 3. FC = 0, OS = 0 4. FC = 0, OS = -3   4. In the reaction 2Na + Cl2 -> 2NaCl, which species is the reducing agent? Optional Answers: 1. Cl2 2. Na   5. For the reaction Mg + Zn2+ -> Zn + Mg2+, which of the following statements is FALSE? Optional Answers: 1. Zn2+ undergoes reduction 2. Magnesium loses electrons 3. Magnesium is the oxidizing agent 4. Magnesium is a more active metal than zinc   6. From the reactions shown: copper displaces silver ions and iron displaces copper ions. Iron reacts with acid, but copper does not. Rank the species in order of INCREASING activity. Optional Answers: 1. Fe < H2 < Cu < Ag 2. Fe < Cu < H2 < Ag 3. Ag < H2 < Cu < Fe 4. Ag < Cu < H2 < Fe   ----- 9.5   1. In a 3.0 M solution of aluminum fluoride, what are the concentrations of the major species present? Optional Answers: 1. 3.0 M Al3+ and 9.0 M F 2. 3.0 M Al3+ and 6.0 M F 3. 3.0 M AlF3 4. 3.0 M Al3+ and 3.0 M F   2. 100. mL of a 4.00 M sulfuric acid solution is diluted to 200. mL. What is the new concentration of the sulfuric acid solution? Optional Answers: 1. 4.0 M 2. 2.0 M 3. 1.0 M 4. 8.0 M   3. An acidic solution will have a pH of: Optional Answers: 1. > 7 2. = 7 3. < 7 4. Which of the following would be MOST suitable as an antacid? Optional Answers: 1. A strong base 2. A weak acid 3. A strong acid 4. A weak base