August 2017  Chemistry Regents #26-30

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26 Which reaction occurs at the anode of an electrochemical cell?

(1) oxidation       (3) neutralization

(2) reduction      (4) transmutation

1 An OX...Anode Oxidation

27 Which substance is an electrolyte?

(1) CCl4                 (3) SiO2

(2) C6H12O6          (4) H2SO4

4 Acid, Bases or Salts

Sulfuric Acid

TABLE K

28 In which process does a heavy nucleus split into two lighter nuclei?

(1) titration         (3) electrolysis

(2) fission             (4) neutralization		2 Split...Fis...sion

 

29 Which process converts mass into energy?

(1) distillation of ethanol

(2) filtration of a mixture

(3) fusion of hydrogen atoms

(4) ionization of cesium atoms

3 mass to energy....nuclear reaction fission or fusion

30 Which radioisotope is used to determine the age of once-living organisms?

(1) carbon-14     (3) iodine-131

(2) cobalt-60       (4) uranium-238

1 living...carbon

 

Questions 1-5 Questions 6-10 Questions 11-15 Questions 16-20 Questions 21-25 Questions 26-30 Questions 31-35 Questions 36-40 Questions 41-45 Questions 46-50

Questions 51-52 Questions 53-54 Questions 55-58 Questions 59-60 Questions 61-65 Questions 66-68 Questions 69-72 Questions 73-77  Questions 78-81  Questions 82-85

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