Why is magnesium so flammable? Justify your answer.

Explanation

### Step-by-Step Solution:

1. **Understanding Flammability**: Flammability refers to the ability of a substance to catch fire and burn easily in the presence of an oxidizing agent, typically oxygen.

2. **Reactivity of Magnesium**: Magnesium is a highly reactive metal. It readily reacts with oxygen when exposed to it. This reaction is a key factor in its flammability.

3. **Burning Process**: When magnesium is heated in the presence of oxygen, it ignites and burns vigorously. This combustion process is characterized by the release of energy in the form of heat and light.

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