Given: 4 NO2(g) + O2(g) 2 N2O5(g) H = -110.2 kJ find H for ...

[craiczarry]

Given: 4 NO2(g) + O2(g)  2 N2O5(g) H = -110.2 kJ find H for N2O5(g)  2 NO2(g) + 1/2 O2(g).
 
  A) -220.4 kJ
  B) -55.1 kJ
  C) 55.1 kJ
  D) 220.4 kJ

Question 2

Based on the octet rule, aluminum most likely forms an ________ ion.
 
  A) Al3+
  B) Al4+
  C) Al4-
  D) Al+
  E) Al-

Question 3

What is geometry around the oxygen atom labeled O2?
 
  A) bent
  B) tetrahedral
  C) trigonal planar
  D) trigonal pyramidal

[SVictor]

Answer to Question 1

C

Answer to Question 2

A

Answer to Question 3

A