37. Oxygen and ozone have the formulas O₂ and O3 respectively. They are (B) isobars. (C) allotropes. (D) isotopes. (A) isomers. 38. Which instrument is directly used to determine the relative masses of atoms? (A) spectroscope (B)Geiger counter (C)mass spectrograph (E)electron microscope (D)microbalance

Chemistry for Engineering Students
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Chapter2: Atoms And Molecules
Section: Chapter Questions
Problem 2.75PAE: 2.75 Chlorine has only two isotopes, one with mass 35 and the other with mass 37. One is present at...
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I need help on questions 37-38? Could you also explain which option is correct for each option? 

37. Oxygen and ozone have the formulas O₂ and O3 respectively. They are
(B) isobars. (C) allotropes. (D)
(A) isomers.
38. Which instrument is directly used to determine the relative masses of atoms?
(A) spectroscope (B)Geiger counter (C)mass spectrograph
(E)electron microscope
isotopes.
(D)microbalance
Transcribed Image Text:37. Oxygen and ozone have the formulas O₂ and O3 respectively. They are (B) isobars. (C) allotropes. (D) (A) isomers. 38. Which instrument is directly used to determine the relative masses of atoms? (A) spectroscope (B)Geiger counter (C)mass spectrograph (E)electron microscope isotopes. (D)microbalance
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