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Author Question: What is the numerical value of (2.1 104)(4.0 10-2)? A) 8.4 B) 8.4 102 C) 8.4 10-2 D) 8.4 ... (Read 42 times)

jayhills49

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on: Aug 27, 2018
What is the numerical value of (2.1  104)(4.0  10-2)?
 
  A) 8.4
  B) 8.4  102
  C) 8.4  10-2
  D) 8.4  10-8
  E) none of the above

Question 2

Elements that belong to the same group have the same number of valence electrons.
 
  Indicate whether the statement is true or false


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Andromeda18

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

B

Answer to Question 2

TRUE


jayhills49

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Reply 2 on: Aug 27, 2018
Great answer, keep it coming :)

mohan

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Reply 3 on: Yesterday
Excellent

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