oxygen is combustible, carbon dioxide isnt
Whomever wrote the above answer obviously never took basic science classes.
OXYGEN IS NOT A COMBUSTIBLE GAS!! It is an oxidizer.
The danger of compressed O2 cannisters is that they are under high pressure. O2 in & of itself will not burn. It is a major component of the "Fire Triangle"; the 3 things needed for fire to exist (1. a fuel source 2. heat 3. Oxygen). Take away any one of these items and it is impossible for a fire to exist.
You bring a stream of compressed O2 near an open flame, the flame will burn hotter but the Oxygen itself WILL NOT IGNITE.
http://www.newton.dep.anl.gov/askasci/chem00/chem00325.htm
Hydrogen gas in pure form is 2 hydrogen atoms connected together (H-H)<=Lewis drawing
Oxygen gas in pure form is 2 oxygen atoms connected together (O=O)
Water is a completely different chemical. Water is one oxygen connected to two hydrogens. (H-O-H*) This molecule is much more stable than either pure oxygen or hydrogen.
A chemical is not just a sum of all the elements in it. Due to the unique way the electrons are shared, each chemical has different properties.
These gasses are bonded with covalent bonds. This means that the electrons are shared between the atoms. Enough atoms are shared so that each atom has 8 electrons in its highest shell (or 2 electrons in the case of hydrogen) This is why Oxygen has 2 bonds/shared electrons in my Lewis drawings, while hydrogen only has one.
* this is not a completely accurate Lewis drawing. Water actually has 2 lone electron pairs, which force the molecule into a bent shape. But that is irrelevant for this discussion. If you look up water on wikipedia and look at the picture of the molecule you will see what a bent molecule looks like.
Other materials that are not combustible or only very slightly combustible under normal conditions can become very combustible and hazardous when oxygen levels are high. Also, many things will be hot or will smolder when deprived of air and will suddenly burst into flames when exposed to the oxygen that's in our air. Since oxygen is required for the burning we see, the sudden combustion in these examples would be more dangerous if the oxygen concentration were higher.
Americium is not combustible.
Yes if the leaves where damp but if they were wetter that that the would not be combustible. Combustible means something that can burn easy so dry leaves are combustible because they burn easily.
It is not combustible like some materials, but it can catch afire which is why many shops have separate shop vacs for titanium dust/chips.
You have to produce some kind of reaction to make the fuel change state. This could be a nuclear reaction, or in the case of combustible fossil fuels it is a chemical reaction with oxygen
because oxygen is combustible.
Oxygen is neither combustible nor explosive, it is merely the chemical needed for combustion to take place. As such, the higher the concentration of oxygen, the higher the rate of combustion, provided that combustible material is present.
Oxygen is neither combustible nor flammable. It supports the combustion of a combustible substance. For example, if you light a match and expose it to pure oxygen, the flame will grow larger and brighter while it's in the oxygen, but the oxygen itself will not ignite.
The substances that can react with oxygen and give out heat and light i.e., undergo combustion are called combustible substances.
When hydrogen burns, it is combining with oxygen. Once it has combined to form water, the molecule does not want to readily accept more oxygen atoms. Fire is rapid oxidation, so if it is already oxidized, it is done.
Something that burns is called combustible Substances that burns in air or oxygen to produce heat and light are called combustible substances
Oxygen itself isn't flammable but it is required for something to burn
Cobustible substances can catch on fire but non-combustible substances are inflammabe
the three essentials for combustion are :- (i) combustible substance (ii) oxygen (iii) ignition temperature
Air consists of 3/4 th content of nitrogen which is inert and not combustible. But Oxygen is combustible hence when you strike a match stick it takes Oxygen from air to cause fire
Hydrogen gas and oxygen gas are gases at room temperature. Oxygen supports combustion and hydrogen is very combustible. Water is a liquid at room temperature and is not combustible and does not support combustion.
Other materials that are not combustible or only very slightly combustible under normal conditions can become very combustible and hazardous when oxygen levels are high. Also, many things will be hot or will smolder when deprived of air and will suddenly burst into flames when exposed to the oxygen that's in our air. Since oxygen is required for the burning we see, the sudden combustion in these examples would be more dangerous if the oxygen concentration were higher.