January 2015 Chemistry Regents #26-30

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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

Question 51-53 Questions 54-55
 Questions 56-58 Questions 59-61 Questions 62-63 Questions 64-65 Questions 66-68 Questions 69-72  Questions 73-75  Questions 76-78  Questions 79-81 Questions 82-85

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26 Which process occurs in an operating voltaic cell?

(1) Electrical energy is converted to chemical energy.

(2) Chemical energy is converted to electrical energy.

(3) Oxidation takes place at the cathode.

(4) Reduction takes place at the anode.

2 Link Voltaic=Battery

Chemical to electrical

27 What can be explained by the Arrhenius theory?

(1) the behavior of many acids and bases

(2) the effect of stress on a phase equilibrium

(3) the operation of an electrochemical cell

(4) the spontaneous decay of some nuclei

1 Link Acid Base theory
28 According to one acid-base theory, a water molecule acts as an acid when the molecule

(1) donates an H ion

 (2) accepts an H ion

(3) donates an OH ion

(4) accepts an OH ion

1 Link Bronsted Lowry Acid definition

 

29 Positrons and beta particles have

(1) the same charge and the same mass

 (2) the same charge and different masses

(3) different charges and the same mass

(4) different charges and different masses

3 Link same mass opposite charge
30 Which term identifies a type of nuclear reaction?

(1) transmutation (3) deposition

 (2) neutralization (4) reduction

1 Link Transmutation-when an element changes into a different element

 

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

Question 51-53 Questions 54-55
 Questions 56-58 Questions 59-61 Questions 62-63 Questions 64-65 Questions 66-68 Questions 69-72  Questions 73-75  Questions 76-78  Questions 79-81 Questions 82-85

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