June 2018  Chemistry Regents #31-35

Highlight to reveal answers and explanations

 

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 51-53 Questions 54-56 Questions 57-59 Questions 60-62 Questions 63-65 Questions 66-69 Questions 70-73 Questions 74-76  Questions 77-79  Questions 80-82  Questions 83-85 

Other Regents Exams

 

Questions

AnswerLinks

Explanations

   
32 Each line in the spectra represents the energy

(1) absorbed as an atom loses an electron

(2) absorbed as an atom gains an electron

(3) released as an electron moves from a lower energy state to a higher energy state

(4) released as an electron moves from a higher energy state to a lower energy state

   
   

 

34 What is the approximate mass of an atom that contains 26 protons, 26 electrons and 19 neutrons?

(1) 26 u       (3) 52 u

(2) 45 u       (4) 71 u

   
35 Which electron configuration represents a potassium atom in an excited state?

(1) 2-7-6       (3) 2-8-8-1

(2) 2-8-5       (4) 2-8-7-2

   

 

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 51-53 Questions 54-56 Questions 57-59 Questions 60-62 Questions 63-65 Questions 66-69 Questions 70-73 Questions 74-76  Questions 77-79  Questions 80-82  Questions 83-85 

Back to Regents Exams