Yes, because it reacts with the oxygen in the air to form a new compound.
Magnesium becomes heavier after it is burnt. This is because the magnesium has chemically bonded with oxygen to form magnesium oxide. The oxygen adds the extra weight.
No, magnesium is already a metal. When burnt, magnesium reacts with oxygen to form magnesium oxide, releasing a bright white light in the process.
When magnesium is burnt, it reacts with oxygen to produce magnesium oxide. The word equation for this reaction is: magnesium + oxygen → magnesium oxide.
If it is burnt with a gas such as oxygen then yes
It forms magnesium oxide. :)
When Magnesium burns, it is actually combining with oxygen in the air to form a new compound, magnesium oxide. If we were to carefully weigh a piece of magnesium before and after burning it, you would see that its weight increased by about one third. For example, if you start with 100 grams of magnesium, after the burn you would end up with about 130 grams of magnesium oxide. The fact that the magnesium oxide you create by burning is powdery, means that it takes up more space (size or volume) than the solid magnesium did.
One - Magnesium Oxide (MgO)
a bright light is created and it then creates magnesium oxide
If completely burnt (in excess of oxygen), all the magnesium will be converted to magnesium oxide.
Magnesium oxide (MgO) is formed. When a piece of magnesium ribbon is burnt it reacts with oxygen in air according to the chemical equation: 2Mg(s) + O2(g) → 2MgO(s) The magnesium burns in a bright white light and the resulting magnesium oxide is in the form of a white powder.
Oxygen in the air (O2)
According to the Law of Conservation of Mass, matter can neither be created nor destroyed, only change forms. Therefore, if you burn magnesium inside of a closed container, the mass will remain the same. ---- However you will get heavier ash than you had magnesium as the Oxygen in the air in your container will be transfered. But Total Mass is conserved.