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Iron and magnesium burn in air under the right circumstances becasue they combine rapidly with oxygen. (Fire is just the rapid combination of oxygen or another oxidizer, wiht a fuel.)
Oxygen is only about 20% of air. If you provide pure, 100%, oxygen under the same circumstances, there is more oxygen to combine with the iron or magnesium, so they can burn faster.
What else can I help you with?
Does oxygen make things burn brighter?
Oxygen is what makes things burn at all. The more oxygen there is, the brighter it can burn.
Why does rust weigh more than original powdered iron?
Rust is iron oxide, which is made up of iron and oxygen atoms. When iron reacts with oxygen to form rust, it increases in weight because it has gained oxygen atoms. This increase in weight is why rust weighs more than the original powdered iron.
Why does burnt iron weigh more than unburnt iron?
When iron is burnt, it combines with oxygen to form iron oxide (rust). This increase in weight is due to the added oxygen atoms bonded to the iron atoms, making the total weight of the iron and oxygen combined greater than that of the unburnt iron alone.
Why does iron wool burn better than an iron nail?
Since filaments of iron wool are much thinner than an iron nail, they therefore have a much higher ratio of surface area to volume, and burning takes place at the surface, so the more surface, the more easily it burns.
Does oxygen cause fire to burn more quickly?
yes it does, that's why your always told to keep all doors closed when a fire is inside!
Will burnt Iron weigh more or less than unburnt Iron?
Burnt iron (iron oxide) will weigh more than unburnt iron because the process of burning involves combining iron with oxygen from the air to form iron oxide. The additional weight comes from the oxygen atoms that have bonded with the iron atoms during the burning process.
Why does magnesium burn more in oxygen that in air?
First off, it doesn't burn more, it burns quicker. This is because It's reacting with the oxygen, and in a 100% oxygen environment there's simply more oxygen to react with (the air is 21% oxygen).
If you put a match in pure oxygen will the oxygen burn?
No, oxygen itself does not burn. Oxygen only supports and accelerates combustion when there is a fuel source present. So, while the match may burn more intensely in pure oxygen, the oxygen itself does not burn.
Does oxygen make things burn brighter?
Oxygen is what makes things burn at all. The more oxygen there is, the brighter it can burn.
Which bonds with oxygen more iron or lead?
Iron. Think of rust.
Why does rust weigh more than original powdered iron?
Rust is iron oxide, which is made up of iron and oxygen atoms. When iron reacts with oxygen to form rust, it increases in weight because it has gained oxygen atoms. This increase in weight is why rust weighs more than the original powdered iron.
How does oxygen affect how long a candle burns for?
Oxygen is necessary for combustion to take place. When a candle burns, it reacts with oxygen in the air to produce a flame. Increasing the oxygen supply will result in a hotter and more efficient burn, causing the candle to burn more quickly. Conversely, reducing the oxygen supply will cause the flame to burn more slowly or even extinguish.
Why does burnt iron weigh more than unburnt iron?
When iron is burnt, it combines with oxygen to form iron oxide (rust). This increase in weight is due to the added oxygen atoms bonded to the iron atoms, making the total weight of the iron and oxygen combined greater than that of the unburnt iron alone.
How does oxygen distribute fire?
Oxygen does not distribute fire. Fire is a chemical reaction between oxygen and some flammable substance. Fire cannot burn without oxygen, and the more oxygen there is, the hotter and faster a fire will burn. More oxygen also makes it easier for materials to ignite.
What makes gasoline burn more efficiently?
Oxygen and heat.
Is iron oxide an element?
No, iron oxide is not an element. It is a compound of iron and oxygen. (There is more than one kind of iron oxide, too.)
Why does iron weigh more after it rusts?
Iron weighs more after it rusts because rust is formed by the addition of oxygen from the surrounding environment. This increase in weight is due to the formation of iron oxide layers on the surface of the iron, which adds to the overall mass of the object.
