How many TT-electrons are present in the poly-ene-yne conjugated system shown below? H CO C — C C-C=C-H = C - H H I o 2...
How many pi electrons are present in the molecule shown below? 8 O 12 O 10
6 How many H atoms are present in 1,3-dimethylcyclopentane? a) 8 O b) 9 O c) 10 O d) 12 O e) 14 O f) 16 7 When but-1-ene is reacted with HCI, the result is mainly 1-chlorobutane. O a) true O b) false 8 Aromatic hydrocarbons undergo addition reactions similar to those of alkenes O a) true o b) false
How many electrons are in the following molecule's largest conjugated p system? Two Four O Six Eight OTen
Answer the questions below for 1,3,5,7-decatetraene. c. How many p atomic orbitals are in the conjugated system (draw)? b. How many molecular orbitals describe the conjugated system (draw)? How many molecular orbitals are bonding molecular orbitals? d. How many molecular orbitals are anti-bonding molecular orbitals? Which molecular orbitals are filled with electrons? f. If this molecule were to absorb a photon of UV light an electron would move between which two molecular orbitals (be specific)? e.
How many conjugated T-electrons are in T-bonding MOs of this molecule? O A. O O B.2 C. 4 D.8 Which reaction sequence would convert 1H-indene to 2-deuterioindane? O A. 1. BH3.THE 2. H2O2, OH 3. PBr3 4. Mg(s), Et20 5. D20 B. 1. DCI 2. Mg(s), Et20 3. H2O O C. 1. HCL 2. Nal 3. D20 OD. 1. D2, Pd/C 2. Cl2, hv. 3. Mg(s), Et20 4. H2O
18 7. How many total H atoms are present in the structure shown below? (2 points).
How many pi (Tt) bonds are there in the molecule below? H :0: H-C-0-C -CSC-H H 2 8
1. how many chromosomes are present?
2. how many chromatids are present?
s 1 2 3 4 5 6 7 8 9 12 10 11 88 89 16 13 14 15 17 18 8 Y 19 20 х
Question 11 How many electrons are present in 40ca2+? 40 20 Question 12 Consider 235U. How many neutrons are present in this nuclide? 92 177 143 235 Question 13 The atomic mass of an atom is the number of ___in that particular atom. o neutrons protons protons plus neutrons o electrons Question 14 The ratio of isotopes for a given element can be measured instrumentally using a isotopometer mass spectrometer oratiometer spectrophotometer
How many TT bonds are there in one molecule of 1,5 hexadiyne (shown below)? H-CEC-CC-CECH Ο Ο Ο Ο Ο Ο