This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: A sample of oxygen gas that contains twice Avogadro's number of molecules has a mass of ________. ... (Read 57 times)

WhattoUnderstand

  • Hero Member
  • *****
  • 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.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

ky860224

  • Sr. Member
  • ****
  • Posts: 350
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
Wow, this really help

miss_1456@hotmail.com

  • Member
  • Posts: 289
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Immunoglobulin injections may give short-term protection against, or reduce severity of certain diseases. They help people who have an inherited problem making their own antibodies, or those who are having certain types of cancer treatments.

Did you know?

Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.

Did you know?

Acute bronchitis is an inflammation of the breathing tubes (bronchi), which causes increased mucus production and other changes. It is usually caused by bacteria or viruses, can be serious in people who have pulmonary or cardiac diseases, and can lead to pneumonia.

Did you know?

In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.

Did you know?

Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.

Energy of reactant molecules. Energy of reactant molecules.
A typical zirconia oxygen sensor. A typical zirconia oxygen sensor.
Silicon-oxygen tetrahedron Silicon-oxygen tetrahedron
A 2.000 g sample of water contains 11.19% H by mass and 88.81% O by mass. What mass of H will ... A 2.000 g sample of water contains 11.19% H by mass and 88.81% O by mass. What mass of H will ...
The decay rate of a radioactive sample decreases from 175 kBq to 12.4 kBq in 18.3 s. What is ... The decay rate of a radioactive sample decreases from 175 kBq to 12.4 kBq in 18.3 s. What is ...
A sample of baking soda is heated and releases carbon dioxide gas into a 1000-mL A sample of baking soda is heated and releases carbon dioxide gas into a 1000-mL
Video: Sex-Linked Traits! How are eye colors inherited in fruit flies?

For a complete list of videos, visit our video library