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Author Question: How many electrons are there in a Ca atom? A) 20 B) 40 C) 21 D) ... (Read 43 times)

Yi-Chen

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on: Aug 27, 2018
How many electrons are there in a Ca atom?
 
  A) 20
  B) 40
  C) 21
  D) 60

Question 2

If the pOH of a solution is 9, the H+ = 10-5 M.
 
  Indicate whether the statement is true or false

Question 3

One molecule of oxygen gas has fewer atoms than one mole of ozone gas.
 
  Indicate whether the statement is true or false


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IRincones

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

A

Answer to Question 2

TRUE

Answer to Question 3

TRUE


Yi-Chen

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Reply #2 on: Aug 27, 2018
TY


IRincones

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Reply #3 on: Aug 27, 2018
You're welcome


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