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CHEM 120 Final Exam (TOP RATED PAPER) | 100% Correct solutions.

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CHEM 120 Final Exam 1. Question: (TCO 12) Transcription is the process by which DNA passes information to (Pts. : 5) another strand of DNA. transfer RNA. ribosomal RNA. messenger RNA. a new cell. 0 1644446422 MultipleChoice 5 2. Question: (TCO 12) The portion of an enzyme where the substrate “fits” during the reaction is called the (Pts. : 5) active site. action site. reaction site. substrate site. inhibitor site. 0 1644446423 MultipleChoice 8 3. Question: (TCO 12) Which of the following is not an unsaturated fatty acid? (Pts. : 5) CH3CH2CH2CH=CHCOOH CH3CH=CHCH=CHCOOH CH3CH2CH2CH2CH2COOH CH3CH2CH2CH2CH2CH=CHCOOH CH3CH=CHCH2CH=CHCOOH 0 1644446425 MultipleChoice 10 4. Question: (TCO 12) The helical structure of certain proteins, such as wool, is a part of the protein’s (Pts. : 5) primary structure. secondary structure. tertiary structure. primary and secondary structures. secondary and tertiary structures. 0 1644446427 MultipleChoice 15 5. Question: (TCO 12) Which of the following is a disaccharide? (Pts. : 5) Cellulose Starch Fructose Galactose Lactose 0 1644446429 MultipleChoice 17 6. Question: (TCO 12) In cells, protein synthesis occurs on the (Pts. : 5) Golgi apparatus. mitochondria. nucleus. cytoplasm. ribosomes. 0 1644446431 MultipleChoice 20 7. Question: (TCO 12) Which of the following is a monosaccharide? (Pts. : 5) Cellulose Starch Galactose Mannose Lactose 0 1644446433 MultipleChoice 23 8. Question: (TCO 4) The best description of the shape of an ammonia molecule is . (Pts. : 5) linear pyramidal bent tetrahedral None of the above 0 1644446434 MultipleChoice 27 9. Question: (TCO 4) Which of the following substances does not have polar covalent bonds? (Pts. : 5) CO2 Br2 CH4 NF3 0 1644446437 MultipleChoice 28 10. Question: (TCO 8) According to the Bronsted-Lowry definition, which chemical in the following reaction is the acid? H2CO3 + H2O -> H3O+ + HCO - (Pts. : 5) H2O HCO - H2CO3 H3O+ None of the above 0 1644446439 MultipleChoice 31 11. Question: (TCO 8) According to the Bronsted-Lowry definition, which chemical in the following reaction is the base? H2CO3 + H2O -> H3O+ + HCO - (Pts. : 5) H2O H2CO3 HCO - H3O+ None of the above 0 1644446442 MultipleChoice 34 12. Question: (TCO 2) Match the atom with the appropriate description. (Pts. : 15) Potential Matches: 1 : Boron (B) 2 : Carbon (C) 3 : Neon (Ne) 4 : Nitrogen (N) 5 : Lithium (Li) Answer : An atom, which has a mass number of 7, with 4 neutrons : An atom, which has a mass number of 11, with 6 neutrons : An atom, which has a mass number of 12, with 6 neutrons : An atom, which has a mass number of 14, with 7 neutrons : An atom, which has a mass number of 20, with 10 neutrons 0 1644446444 Matching 1 13. Question: (TCO 10) Match the organic compound with its use or characteristic. (Pts. : 15) Potential Matches: 1 : Disinfectant 2 : Fingernail polish remover 3 : Alkaloid 4 : Insecticide 5 : Pineapple flavor Answer : Dichlorodiphenyltrichloroethane : Formaldehyde : Acetone : Caffeine : Ethyl butyrate 0 1644446445 Matching 5 14. Question: (TCO 9) Match the organic compound with its name. (Pts. : 15) Potential Matches: 1 : Ethanoic acid 2 : 1-propanol 3 : Ethylamine 4 : Heptanal 5 : Pentyl acetate Answer : CH3COOH : CH3CH2CH2CH2CH2CH2CHO : CH3CH2CH2OH : CH3COOCH2CH2CH2CH2CH3 : CH3CH2NH2

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