A catalyst that is present in a different phase from the reacting ...

[jparksx]

A catalyst that is present in a different phase from the reacting molecules is called a(n) ________ catalyst.
 
  Fill in the blank(s) with correct word

Question 2

Magnesium and nitrogen react in a combination reaction to produce magnesium nitride:
 
  3 Mg + N2  Mg3N2
 
  In a particular experiment, a 8.33-g sample of N2 reacts completely. The mass of Mg consumed is ________ g.
  A) 7.23
  B) 21.7
  C) 28.9
  D) 0.92
  E) 13.9

Question 3

The value of H for the formation of phosphorous trichloride from its constituent elements, P2 (g) + 3Cl2 (g)  2PCl3 (g) is ________ kJ/mol
 
  A) -288.1
  B) +432.4
  C) -720.5
  D) +720.5
  E) -432.4

Question 4

Of the following, ________ radiation has the shortest wavelength.
 
  A) X-ray
  B) radio
  C) microwave
  D) ultraviolet
  E) infrared

[beccamahon]

Answer to Question 1

heterogeneous

Answer to Question 2

B

Answer to Question 3

C

Answer to Question 4

A

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