Gases
Learn about gases. Get information on gas properties, learn to prepare gases, and find projects and demonstrations involving gases.
Introduction to Ideal Gases
From your About Chemistry Guide, this is a concise description of ideal gas properties and equations for the Ideal Gas Law, Boyle's Law, Law of Charles and Gay-Lussac, and Dalton's Law.
From your About Chemistry Guide, this is a concise description of ideal gas properties and equations for the Ideal Gas Law, Boyle's Law, Law of Charles and Gay-Lussac, and Dalton's Law.
States of Matter
Get definitions and examples of the main states of matter: solids, liquids, gases, and plasma.
Get definitions and examples of the main states of matter: solids, liquids, gases, and plasma.
Gas Preparation
Here are simple instructions for preparing common gases from ordinary chemicals. The gases include carbon dioxide, oxygen, nitrogen, methane, nitrous oxide, chlorine, and several others.
Here are simple instructions for preparing common gases from ordinary chemicals. The gases include carbon dioxide, oxygen, nitrogen, methane, nitrous oxide, chlorine, and several others.
Noble Gas Properties
Get information about the properties shared by the noble or inert gases.
Get information about the properties shared by the noble or inert gases.
Halogen Properties
The halogens are a specific group of nonmetals with some distinctive properties.
The halogens are a specific group of nonmetals with some distinctive properties.
What Is the Chemical Composition of Air?
Learn about chemical composition of the Earth's air. Percentages of the most common compounds are given, according to volume.
Learn about chemical composition of the Earth's air. Percentages of the most common compounds are given, according to volume.
Ideal Gas Example Problem - Constant Volume
Here is an example of an ideal gas problem where the volume of the gas is held constant.
Here is an example of an ideal gas problem where the volume of the gas is held constant.
Ideal Gas Quiz
Do you understand the ideal gas laws? Here's a ten question multiple choice quiz you can take to test your knowledge.
Do you understand the ideal gas laws? Here's a ten question multiple choice quiz you can take to test your knowledge.
Ideal Gas Law
Here are some worked examples of Ideal Gas Law chemistry problems plus links to formulas for working gas problems and related chemistry tools and resources.
Here are some worked examples of Ideal Gas Law chemistry problems plus links to formulas for working gas problems and related chemistry tools and resources.
10 Nitrogen Facts
Get handy facts for the element nitrogen.
Get handy facts for the element nitrogen.
Ammonia - How to Prepare Ammonia Gas
These are instructions for preparing ammonia gas from ammonium chloride and calcium hydroxide in water.
These are instructions for preparing ammonia gas from ammonium chloride and calcium hydroxide in water.
Barking Dog Reaction
The Barking Dog chemistry demonstration is based on an exothermic reaction between nitrous or nitric oxide and carbon disulfide. Ignition of the mixture results in a bright blue chemiluminescent flash accompanied by a characteristic barking sound.
The Barking Dog chemistry demonstration is based on an exothermic reaction between nitrous or nitric oxide and carbon disulfide. Ignition of the mixture results in a bright blue chemiluminescent flash accompanied by a characteristic barking sound.
Can a Candle Burn in Zero Gravity?
Can a candle burn in the absence of gravity? Here's the answer to this frequently asked question about fire.
Can a candle burn in the absence of gravity? Here's the answer to this frequently asked question about fire.
Carbon Dioxide - How to Prepare Carbon Dioxide Gas
These are instructions for preparing carbon dioxide gas from calcium carbonate and hydrochloric acid.
These are instructions for preparing carbon dioxide gas from calcium carbonate and hydrochloric acid.
Chlorine Gas - How to Prepare Chlorine Gas
These are instructions for preparing chlorine gas from potassium permanganate and hydrochloric acid.
These are instructions for preparing chlorine gas from potassium permanganate and hydrochloric acid.
Color Fire
Have you ever wanted to color fire? Here are simple, nontechnical instructions for making your own colored flames. Add extra interest to your fireplace or campfire!
Have you ever wanted to color fire? Here are simple, nontechnical instructions for making your own colored flames. Add extra interest to your fireplace or campfire!
Colored Smoke Recipes
Colored smoke is easy to make and requires few ingredients. Here's a list of some colored smoke formulations to try.
Colored smoke is easy to make and requires few ingredients. Here's a list of some colored smoke formulations to try.
Green Fire Instructions
It's easy to make brilliant green fire. This cool chemistry project only takes two household chemicals.
It's easy to make brilliant green fire. This cool chemistry project only takes two household chemicals.
Phases & Phase Changes Quiz
Take this multiple choice quiz to test your understanding of the states of matter.
Take this multiple choice quiz to test your understanding of the states of matter.
Smoke Bomb Instructions
You can easily make a smoke bomb using inexpensive materials to produce safe smoke.
You can easily make a smoke bomb using inexpensive materials to produce safe smoke.
Sulfur Hexafluoride Demonstrations
Sulfur hexafluoride is a non-toxic, invisible gas that you can use to perform interesting chemistry demonstrations. Breathe it in and make your voice much deeper when you talk. Pour it into a container and float an airplane or a ship on 'nothing'.
Sulfur hexafluoride is a non-toxic, invisible gas that you can use to perform interesting chemistry demonstrations. Breathe it in and make your voice much deeper when you talk. Pour it into a container and float an airplane or a ship on 'nothing'.
What Is the Greenhouse Effect?
Learn what the greenhouse effect is and how it is related to climate.
Learn what the greenhouse effect is and how it is related to climate.
What Is the Most Abundant Element?
The elemental composition of the universe and the earth's crust are very different! How different? Take a look...
The elemental composition of the universe and the earth's crust are very different! How different? Take a look...
What is the State of Matter of Fire?
What is the state of matter of fire or flame? Is it a liquid, solid, or gas? Learn the answer to this question and get information about the chemistry of fire.
What is the state of matter of fire or flame? Is it a liquid, solid, or gas? Learn the answer to this question and get information about the chemistry of fire.
White Smoke Chemistry Demonstration
Learn how to perform the white smoke chemistry demonstration, in which a cloud of ammonium chloride crystals are produced from reacting ammonia and hydrochloric acid.
Learn how to perform the white smoke chemistry demonstration, in which a cloud of ammonium chloride crystals are produced from reacting ammonia and hydrochloric acid.