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Author Question: Calculate the formula mass of Be(NO3)2. A. 117 g/mol B. 117 g C. 133 g/mol D. 133 ... (Read 72 times)

karlynnae

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on: Aug 27, 2018
Calculate the formula mass of Be(NO3)2.
 
  A. 117 g/mol
   B. 117 g
   C. 133 g/mol
   D. 133 g

Question 2

Which of the following elements are fifth period semimetals?
 
  A) As and Sb
  B) Ge and As
  C) Sb and Te
  D) Po and At
  E) none of the above


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dellikani2015

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

D

Answer to Question 2

C


karlynnae

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Reply 2 on: Aug 27, 2018
Thanks for the timely response, appreciate it

amandalm

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Reply 3 on: Yesterday
Excellent

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