The layer of the atmosphere that contains our weather is called ...

[burchfield96]

The layer of the atmosphere that contains our weather is called the ________.
 
  A) mesosphere
  B) heterosphere
  C) stratosphere
  D) thermosphere
  E) troposphere

Question 2

Find H for BaCO3 (s)  BaO (s)+ CO2 (g) given 2 Ba (s) + O2 (g)  2 BaO (s) H = -1107.0 kJ Ba (s) + CO2 (g) + 1/2 O2 (g)  BaCO3 (g) H = -822.5 kJ
 
  A) -1929.5 kJ
  B) -1376.0 kJ
  C) -284.5 kJ
  D) 269.0 kJ

Question 3

The electron configuration of the sulfide ion (S2-) is ________.
 
  A) Ne3s2
  B) Ne3s23p1
  C) Ne3s23p4
  D) Ne3p2
  E) Ne3s23p6

[epscape]

Answer to Question 1

E

Answer to Question 2

D

Answer to Question 3

E

[burchfield96]

Wow, this really help

[Joy Chen]

Excellent