what happens when a magnesium ribbon is heated in presence of air
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The ribbon burns with a bright white light. Intense heat is also produced in this reaction. Here, when magnesium burns, it reacts with the oxygen found in air to form a powdery ash called magnesium oxide. Chemical equation: Magnesium plus Oxygen gives Magnesium oxide.
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Answer:
When a piece of magnesium ribbon is ignited, light and heat are produced.
When magnesium burns, it actually reacts with oxygen in the air and not with fire.
Magnesium reacts with oxygen to form a compound called magnesium oxide.
The reaction is as follows:
2Mg+O2→2MgO+heat+light
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