January 2017 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 56-57 Questions 58-59 Questions 60-61 Questions 62-65  Questions 66-68  Questions 69-72  Questions 73-77 Questions 78-79 Questions 80-82 Questions 83-85
 

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26 Which type of equation can represent the oxidation occurring in a reaction?

(1) a double-replacement reaction equation

(2) a half-reaction equation

(3) a neutralization reaction equation

(4) a transmutation reaction equation

2   redox...half reactions
27 The electrical conductivity of an aqueous solution depends on the concentration of which particles in the solution?

(1) molecules (3) atoms

(2) electrons (4) ions

4   moving charge...ions move
28 An electrolytic cell differs from a voltaic cell because an electrolytic cell

(1) generates its own energy from a spontaneous physical reaction

(2) generates its own energy from a nonspontaneous physical reaction

(3) requires an outside energy source for a spontaneous chemical reaction to occur

(4) requires an outside energy source for a nonspontaneous chemical reaction to occur

4   electrolytic requires a power source

 

29 A sample of which radioisotope emits particles having the greatest mass?

(1) 137Cs (3) 220Fr

(2) 53Fe (4) 3H

3   Table N...alpha particles are the most massive (Table O)
30 Which term represents a nuclear reaction?

(1) combustion (3) transmutation

(2) fermentation (4) saponification

3   nuclear transmutation

 

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 56-57 Questions 58-59 Questions 60-61 Questions 62-65  Questions 66-68  Questions 69-72  Questions 73-77 Questions 78-79 Questions 80-82 Questions 83-85
 

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