Which of the following elements has the largest atomic radius? ...

[Garrulous]

Which of the following elements has the largest atomic radius?
 
  A) Li
  B) Be
  C) B
  D) Na
  E) Mg

Question 2

If 1.0 mol of N2 and 3.0 mol of H2 in a closed container initially at STP react completely in the reaction shown below, then the final pressure in the flask will be ________ atm at 273 K. N2(g) + 3 H2(g)  2 NH3(g)
 
  Fill in the blank(s) with correct word

Question 3

What is the second step in the unit analysis method of problem solving?
 
  A) Write down the unit asked for in the answer.
  B) Write down the given value related to the answer.
  C) Apply a unit factor to convert a unit in the given value.
  D) Round off the answer in the calculator display.
  E) none of the above

[zogaridan]

Answer to Question 1

D

Answer to Question 2

2.0

Answer to Question 3

B

[Garrulous]

Wow, this really help

[kalskdjl1212]

Gracias!