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Author Question: A sample of oxygen gas that contains twice Avogadro's number of molecules has a mass of ________. ... (Read 103 times)

WhattoUnderstand

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  • Posts: 517
on: Aug 27, 2018
A sample of oxygen gas that contains twice Avogadro's number of molecules has a mass of ________.
 
  A) 8.0 g
  B) 16.0 g
  C) 32.0 g
  D) 64.0 g

Question 2

Increasing the pressure will ________. 2SO2 (g) + O2 (g) = 2SO3 (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

Ammonia can be prepared by the reaction of magnesium nitride with water. The products are ammonia and magnesium hydroxide. When the equation is written and balanced, the coefficient of water is
 
  A) 1.
  B) 2.
  C) 3.
  D) 6.


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Marked as best answer by a Subject Expert

ky860224

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Reply #1 on: Aug 27, 2018
Answer to Question 1

D

Answer to Question 2

A

Answer to Question 3

D


WhattoUnderstand

  • Member
  • Posts: 517
Reply 2 on: Aug 27, 2018
Gracias!

debra928

  • Member
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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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