|
What are
the Properties of Hydrogen? Definition of Hydrogen
What is the definition of
Hydrogen? It is a colorless, highly flammable gaseous element,
the lightest of all gases and the most abundant element in the universe. The
Physical and
Chemical Properties are the
characteristics of a substance, like Hydrogen, which distinguishes it from any
other substance. Most common substances, like Hydrogen, exist as
States of Matter as solids, liquids, gases and plasma. Refer to the article on
Hydrogen for additional information and facts about this substance.
Hydrogen Properties
- What are the Physical Properties of Hydrogen?
What are the Physical
Properties of Hydrogen? The Physical properties of Hydrogen are the characteristics
that can be observed without changing the substance into another
substance. Physical properties are usually those that can be observed using our
senses such as color, luster, freezing point, boiling point, melting point, density, hardness and odor. The Physical Properties of Hydrogen are as follows:
|
What are the Physical Properties of Hydrogen? |
| Color |
Colorless |
| Phase |
Gas
Hydrogen changes from a gas to a liquid at a temperature of
-252.77°C (-422.99°F)
It changes from a liquid to a solid at a temperature of -259.2°C
(-434.6°F) |
| Odor |
Hydrogen is an odorless gas |
| Taste |
A tasteless gas |
| Density |
The lowest of any chemical
element, 0.08999 grams per liter - the least dense of all gases |
|
Solubility |
Slightly soluble in water,
alcohol and some other common liquids |
Hydrogen Properties - What are the Chemical Properties of Hydrogen?
What are the Chemical
Properties of Hydrogen? They are the characteristics that
determine how it will react with other substances or change from
one substance to another. The better we know the nature of the substance the
better we are able to understand it. Chemical properties are only observable during a
chemical reaction. Reactions to substances may be brought
about by changes brought about by burning, rusting, heating, exploding, tarnishing
etc. The Chemical
Properties of Hydrogen are as follows:
|
What are the Chemical Properties of Hydrogen? |
| Chemical
Formula |
H
Hydrogen gas (H2) |
|
Oxidation |
It burns in air or oxygen
to produce water
H2 reacts with every oxidizing element |
|
Reactivity with gases |
Combining hydrogen and
nitrogen at high pressure and temperature produces ammonia (NH3)
Combined with carbon monoxide produces methanol (CH3OH) |
|
Reactivity with non-metals |
It combines readily with
non-metals, such as sulfur and phosphorus
It combines readily with the halogens which
include fluorine, chlorine, bromine, iodine, and astatine |
|
Flammability |
Highly
Flammable, a highly combustible diatomic gas |
| Combustion |
When mixed with air and
with chlorine it can spontaneously explode by spark, heat or
sunlight. Example: the destruction of the Hindenburg airship |
| Acid Compounds |
Common acids include
hydrochloric acid (HCl), sulfuric acid (H2SO4),
nitric acid (HNO3), acetic acid (HC2H3O2)
and phosphoric acid (H3PO4) |
Facts and
Info about Hydrogen Properties
This article
on Hydrogen properties provide facts and information about the
physical and chemical properties of Hydrogen which are useful as
homework help for chemistry students. Additional facts and
information regarding the Periodic Table and the elements may be
accessed via the Periodic Table Site Map. |
