How many total electrons are in the O2- ion? A) 10 B) 8 C) 9 ...

[ENagel]

How many total electrons are in the O2- ion?
 
  A) 10
  B) 8
  C) 9
  D) 16
  E) 18

Question 2

For a reaction to be spontaneous at low temperature, the signs of H and S must be ________ and ________, respectively.
 
  A) ,
  B) +, +
  C) , +
  D) +,
  E) +, 0

Question 3

The most common isotope of hydrogen is sometimes referred to as ________.
 
  A) deuterium
  B) protium
  C) tritium
  D) heavy hydrogen
  E) common hydrogen

[maya.nigrin17@yahoo.com]

Answer to Question 1

A

Answer to Question 2

A

Answer to Question 3

B

[ENagel]

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