Using the VSEPR model, the electron-domain geometry of the ...

[olgavictoria]

Using the VSEPR model, the electron-domain geometry of the central atom in XeF4 is ________.
 
  A) linear
  B) trigonal planar
  C) tetrahedral
  D) trigonal bipyramidal
  E) octahedral

Question 2

Magnesium burns in air with a dazzling brilliance to produce magnesium oxide:
 
  2Mg (s) + O2 (g)  2MgO (s)
 
  When 5.50 g of magnesium burns, the theoretical yield of magnesium oxide is ________ g.
  A) 5.50
  B) 9.12
  C) 0.226
  D) 4.56
  E) 18.2

Question 3

Ethanol melts at -114 C and boils at 78 C at a constant pressure of 1 atm. What state of matter must a sample of ethanol be in at 0C and 1 atm?
 
  A) liquid
  B) gas
  C) solid
  D) solid and liquid in equilibrium
  E) liquid and gas in equilibrium

[bitingbit]

Answer to Question 1

E

Answer to Question 2

B

Answer to Question 3

A

[olgavictoria]

Thank you!

[bitingbit]

Always glad to help...