June 2017 Chemistry Regents #26-30
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Questions | Answer | Links | Explanations |
26 Which compound is an isomer of C2H5OC2H5 (1) CH3COOH (3) C3H7COCH3 (2) C2H5COOCH3 (4) C4H9OH | 4 | link | Isomers have the same formula but different structure |
27 Ethanoic acid and 1-butanol can react to produce water and a compound classified as an (1) aldehyde (3) ester (2) amide (4) ether | 3 | link | Organic Acid and Alcohol yields an ester and water |
28 During an oxidation-reduction reaction, the number of electrons gained is (1) equal to the number of electrons lost (2) equal to the number of protons gained (3) less than the number of electrons lost (4) less than the number of protons gained | 1 | link | electrons that are lost from oxidation are gained by reduction always equal charge is conserved |
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29 Which process requires energy for a nonspontaneous redox reaction to occur? (1) deposition (3) alpha decay (2) electrolysis (4) chromatography | 2 | link | energy is required for electrolytic cells which are either electrolysis or electroplating |
30 Which pair of compounds represents one Arrhenius acid and one Arrhenius base? (1) CH3OH and NaOH (3) HNO3 and NaOH (2) CH3OH and HCl (4) HNO3 and HCl | 3 | link | Arhenius acids start with H Bases end with OH (not alcohols CH3OH) They are on Tables K and L |
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