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It increases because the mass of the magnesium adds to the mass of the oxygen. Also, the magnesium expands and magnesium oxide is formed.

The oxidation reaction is:

Mg + O2 = 2 MgO

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Why does crucible and its contents gain mass as a result of heating magnisium in the air?

When magnesium is heated in the air, it undergoes a chemical reaction with oxygen to form magnesium oxide. This reaction increases the total mass of the crucible and its contents due to the addition of oxygen atoms from the air. The increase in mass is a result of the combination of magnesium and oxygen to form magnesium oxide.


What happens to the mass when magnesium is heated in air?

When magnesium is heated in air, it reacts with oxygen to form magnesium oxide. The total mass of the system, which includes the magnesium and the oxygen it reacts with, remains the same according to the Law of Conservation of Mass.


Why does magnesium get heavier when its burned?

When magnesium is burned, it combines with oxygen from the air to form magnesium oxide. This reaction increases the overall weight of the magnesium because the newly formed magnesium oxide has a greater mass than the original magnesium metal due to the added oxygen atoms.


What happens to the mass of magnesium ribbon after heating?

When magnesium is heated it reacts with oxygen in the air to for Magnesium oxide (MgO) 2Mg + O2 = 2MgO Magnesium oxide is white, so when it is heated, it produces a bright white light.


If you burn magnesium what does it turn in to?

Burning magnesium reacts with oxygen in the air to form magnesium oxide, which is a white ash-like substance.


What happens to the MASS when MAGNESIUM is burnt inside a CONTAINER?

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.


Why does nitrogen burn magnesium?

Nitrogen does not burn magnesium. In order for magnesium to burn, it requires oxygen as the oxidizing agent. When magnesium reacts with oxygen in the air, it produces magnesium oxide and releases a considerable amount of heat and light.


How and why does the mass of a magnesium strip change when it is heated strongly in air?

When a magnesium strip is heated strongly in air, it undergoes a chemical reaction called oxidation. Magnesium reacts with oxygen in the air to form magnesium oxide. The mass of the strip increases because magnesium combines with oxygen atoms from the air to form a heavier compound (magnesium oxide).


Which metal burns in air?

Sodium, Potassium, and Phosphorus all burn upon contact with air.


What temperature does oxygen react with magnesium?

Magnesuium burn in air at room temperature.


What white powder do you get when you burn magnesium?

When you burn magnesium, it forms magnesium oxide, which is a white powder. This reaction occurs when magnesium reacts with oxygen in the air, producing a bright white light and the white powdery magnesium oxide residue.


What is the product formed when magnesium ribbon is burn?

When magnesium ribbon is burned in air, it forms magnesium oxide. This is a white powdery substance that results from the reaction of magnesium with oxygen in the air.