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Author Question: Which of the following species is the oxidizing agent? 2 CuBr 2Cu + Br2 A) Cu B) CuBr C) Cu+ ... (Read 26 times)

skymedlock

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on: Aug 27, 2018
Which of the following species is the oxidizing agent? 2 CuBr  2Cu + Br2
 
  A) Cu
  B) CuBr
  C) Cu+
  D) Br-
  E) Br2

Question 2

Why do scuba divers exhale air when they ascend to the surface after a dive?
 
  A) The air bubbles which surround the diver as he/she exhales assists overall buoyancy making it easier for the diver to ascend.
  B) Exhaling of air decreases the volume of air in the lungs, thus making it easier for the lungs to adjust to the decrease in external pressure on the diver as the diver ascends.
  C) If the air in the lungs were not exhaled, the volume of air inside the lungs would expand as the diver ascended and could severely damage the lungs.
  D) Both B and C are true.
  E) None of the above are true.


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yahahah24021

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Reply #1 on: Aug 27, 2018
Answer to Question 1

C

Answer to Question 2

D


skymedlock

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Reply 2 on: Aug 27, 2018
Wow, this really help

Dominic

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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