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Author Question: The only noble gas without eight valence electrons is ________. A) Ar B) Ne C) He D) Kr E) ... (Read 89 times)

karlynnae

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on: Aug 27, 2018
The only noble gas without eight valence electrons is ________.
 
  A) Ar
  B) Ne
  C) He
  D) Kr
  E) All noble gases have eight valence electrons.

Question 2

Which substance is the reducing agent in the reaction below? Pb + PbO2 + 2H2SO4  2PbSO4 + 2H2O
 
  A) Pb
  B) H2SO4
  C) PbO2
  D) PbSO4
  E) H2O

Question 3

What is the pOH of an aqueous solution at 25.0 C that contains 3.98  10-9 M hydroxide ion?
 
  A) 8.40
  B) 5.60
  C) 9.00
  D) 3.98
  E) 7.00


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blazinlyss

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

C

Answer to Question 2

A

Answer to Question 3

A


karlynnae

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Reply 2 on: Aug 27, 2018
Excellent

cici

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Reply 3 on: Yesterday
Gracias!

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