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Author Question: Which element is reduced in the reaction below? Fe2+ + H+ + Cr2O72- Fe3+ + Cr3+ + H2O A) Cr B) ... (Read 50 times)

P68T

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on: Aug 27, 2018
Which element is reduced in the reaction below? Fe2+ + H+ + Cr2O72-  Fe3+ + Cr3+ + H2O
 
  A) Cr
  B) Fe
  C) H
  D) O

Question 2

The ion PO43- has ________ valence electrons.
 
  A) 14
  B) 24
  C) 27
  D) 29
  E) 32


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JYan

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

A

Answer to Question 2

E


P68T

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Reply 2 on: Aug 27, 2018
Gracias!

yeungji

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Reply 3 on: Yesterday
Wow, this really help

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