0.02 moles of a certain aluminum compound has a mass of 1.56 g. ...

[Caiter2013]

0.02 moles of a certain aluminum compound has a mass of 1.56 g. This compound may be ________.
 
  A) aluminum hydroxide
  B) aluminum nitrate
  C) aluminum cyanide
  D) aluminum permanganate

Question 2

Decreasing the concentration of ammonia gas will ________.
 
  2NH3 (g) = N2 (g) + 3H2 (g)
  A) shift the reaction to the right
  B) shift the reaction to the left
  C) have no effect
  D) cannot be determined, since the temperature is unknown

Question 3

When 5 liters of hydrogen gas and 2.5 liter of oxygen gas react to form water at a constant temperature and pressure, how many liters of water vapor (steam) will be formed?
 
  A) 2.5
  B) 5
  C) 3
  D) .5

[GCabra]

Answer to Question 1

A

Answer to Question 2

B

Answer to Question 3

B

[Caiter2013]

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[GCabra]

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