The magnesuim melts and the reaction of it is it produces a bright light ! then when it has cooled down the magnesuim turns into magnesuim oxide because the magnesuim and oxygen attach together because the particles mix together to make magesuim oxide! :)
Either these three from the bbc bitesize Periodic Table test.
Magnesium oxide
Magnesium hydroxide
Magnesium carbonate
You get a really bright white flame and a powder called Magnesium Oxide
A Real cool bright white light that leaves behind a white powder (Magnesium Oxide)
Strong white color
Magnesium oxide (MgO)
Magnesium can burn in the absence of elemental oxygen, yes. This is because it is such a strong reducing agent that it can essentially steal oxygen from substances such as water and carbon dioxide.
Hydrogen gas is released when calcium and water react.
It's a chemical change. The magnesium reacts and combines with the oxygen in the air.
When you burn magnesium, you are taking two elements, magnesium and oxygen, and combining them to form a compound, magnesium oxide. That is synthesis.
Magnesium burn in oxygen; burning is an oxidation reaction. Magnesium also reacts with nitrogen at high temperature to form Mg3N2 where the magnesium is oxidised, i.e. loses electrons. When magnesium is burnt in air some nitride is produced which hydrolyses to give a faint smell of ammonia. The enthalpy of formation (heat of reaction) is greater for MgO than for Mg3N2.
Magnesium can burn in the absence of elemental oxygen, yes. This is because it is such a strong reducing agent that it can essentially steal oxygen from substances such as water and carbon dioxide.
Hydrogen gas is released when calcium and water react.
This is because once the magnesium starts to burn, the uninhibited chemical reaction dominates the fire's need for oxygen (carbon dioxide usually puts fires out by displacing oxygen). The magnesium will continue to burn until there is nothing left to burn.
It needs little to know oxygen to burn.
What happens when magnesium burns? What do you need for magnesium to burn? Will magnesium burn if you have it in a closed container? No. Why not? It needs air. Why does it need air? There is oxygen in the air. Magnesium needs oxygen to burn. So, when magnesium burns, you start with magnesium and end up with a compound that contains both magnesium and oxygen. Magnesium has an atomic weight of 24. Oxygen has an atomic weight of 16. So if you start out with 24 grams of Magnesium you should end up with 40 grams of Magnesium Oxide.
It's a chemical change. The magnesium reacts and combines with the oxygen in the air.
When you burn magnesium, you are taking two elements, magnesium and oxygen, and combining them to form a compound, magnesium oxide. That is synthesis.
Magnesuium burn in air at room temperature.
At room temperature, magnesium and oxygen react very slowly. However, when you burn the magnesium, it will rapidly combine with oxygen in the air to form magnesium oxide, MgO.
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.
Magnesium burn in oxygen; burning is an oxidation reaction. Magnesium also reacts with nitrogen at high temperature to form Mg3N2 where the magnesium is oxidised, i.e. loses electrons. When magnesium is burnt in air some nitride is produced which hydrolyses to give a faint smell of ammonia. The enthalpy of formation (heat of reaction) is greater for MgO than for Mg3N2.
It is given out. If it were taken in, magnesium would not continue to burn when heat were removed.